resistor definition class 10

RELATED ASSESSMENTS. Variable resistor definition A resistor of which the ohmic resistance value can be adjusted. Resistance refers to the amount that an object impedes or resists in an electric current. Furthermore, a resistor in a series is a connected resistor in a line. Furthermore, you will learn about resistors, resistors in a series, resistors in a series formula, its derivation and solved examples. Non-Wire Wound; A variable resistor does not use wire as the resistive element.[Nonwire-Wound]. Carbon film resistor. An easier way to explain resistance is to consider an example of a person in a crowded market struggling to go from one shop to another. If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow. Jun 24,2020 - What do you mean by resistor. The standard resistor values are organised into a set of series of values known as the E-series. Where R 1 is the resistance at the rated voltage V 1 and R 2 is the resistance at 10% of rated voltage V 2.. Carbon composition resistor. A resistor … Activity: In the circuit which was made for previous activity; connect a voltmeter across XY. In this section, you will read about different possible combinations of resistors. Required fields are marked *. The number of bands present in a resistor varies from three to six. It is made of copper wires which is coiled around a ceramic rod and the outer part of the resistor is coated with an insulating paint. So far, you have read about various factors which affect electric current. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Activity: Take three resistors of different values, and connect them in series. Class 10 Science Home Page. Copyright © HarperCollins Publishers. When resistors are connected end to end, i.e. Solution: Given; R1 = 3 Ω, R2 = 4 Ω , R3 = 5 Ω and V = 6 V. Connect the combination of resistors with a 6 V battery and a key. This article discusses resistance along with the resistance formula and its derivation. Types of variable resistors Potentiometer. For example; the wiring of a room may contain various resistors in different combinations. Conductor The movement of electron gives rise to the flow of current through metals Wire wound resistor. Subhasree Pati. You also read about the factors which affect the resistance of a conducting wire. The device or component used to restrict the flow of electric current to certain level is called resistor. A resistor might be static, standard resistor, special, or a pack of variable resistor. The actual resistance at the top of the tolerance band is 1.2 ohms. Potentiometers work by varying the position of a sliding contact across a uniform resistance. Class 10 Science Home Page. But most of these metals have low electrical resistance compared to carbon resistors, as it makes it difficult to produce high resistance without making the resistor bulky. The process of restricting the flow of electric current to certain level is called resistance. to take the potential difference between two terminals of resistor R1. NTC: (Negative Temperature Coefficient) Thermistor, the resistance will decrease as temperature does. Following are the different types of variable resistors: The resistor values change according to the temperature and voltage applied and is not dependent on Ohm’s law. We can use this finding to know what happens to the total resistance of the series combination of many resistors. The potentiometer is the most common variable resistor. resistor synonyms, resistor pronunciation, resistor translation, English dictionary definition of resistor. Let us assume that potential differences are V2 and V3; respectively for R2 and R3. The resistance toward the flow of current will result in the voltage drop. WhatIs.com. Either mechanically (potentiometer, rheostat) or electronically (digital potentiometer). They are. Calculate (NCERT), Solution: Given; the resistance of conductor R1 = 4 W and resistance of bulb R2 = 20 W. The total resistance of the circuit can be calculated as follows: Example: Conductors of resistance 3 Ω, 4 Ω and 5 Ω are connected in series in a circuit which is getting 6 V of potential difference. If R1, R2 and R3 are resistances of individual resistors and Rs is the resistance of series combination, then; Example: An electric lamp, whose resistance is 20 Ω, and a conductor of 4 Ω resistance are connected to a 6 V battery; as shown in the following figure. They further classified into different types. The resistor circuit symbols are usually enhanced with both a resistance value and a name. They are also used in modulators, demodulators, and transmitters. Resistors are used in digital multi-meter, amplifiers, telecommunication, and oscillators. Wire wound resistors find application where balanced current control, high sensitivity, and accurate measurement are required like in shunt with ampere meter. Resistors are combined in two types of combination, viz. Your email address will not be published. Resistors in parallel share the same voltage at their terminals. Class-X . There are two types of linear resistors: Fixed resistors: These resistors have a specific value and these values cannot be changed. Electricity of Class 10 Notes - Complete explanation and Notes of Class 10 Science chapter 1 ‘Electricity’.. Recommend (1) Comment (0) ASK A QUESTION . Following are the different types of non-linear resistors: Resistors may not display the value outside but resistor color pattern through their resistance can be calculated. resistor. Calculate the total resistance in the circuit. Class 10 Resistance of a System of Parallel Resistors . one terminal of one resistor is connected to the terminal of the next resistor and so on, this is called series combination. You can also get free sample papers, Notes, Important Questions. Change the position of the ammeter to anywhere between the resistors and take its reading. PTH (plated-through-hole) resistors use a color-coding system (which really adds some flair to circuits), and SMD (surface-mount-device)resistors have their own value-marking system. The definition of the resistor is, it is a basic two-terminal electrical and electronic component used to restrict the current flow in a circuit. The different values are spaced such that the top of the tolerance band of one value and the bottom of the tolerance band of the next one do not overlap.Take as an example a resistor that has a value of 1 ohm and a tolerance of ±20%. The value, displayed in ohms, is obviously critical for both evaluating and actually constructing the circuit. Let us assume the potential difference between X and Y is V. After that, connect the voltmeter between X and P, i.e. To specific components within an electronic circuit example ; the wiring of conducting. Parallel when the terminals of the resistor is a connected resistor in a resistor in series.... 1.Fixed resistor: a Fixed resistor is an electrical component that limits or regulates the of. What do you mean by resistor specify the resistance will block large amount of current through! Ntc: ( Negative Temperature Coefficient ) Thermistor, the tolerance rate and sometimes the reliability or failure rates or. Method to indicate a resistors value to a certain degree voltmeter between X Y... After that, connect the voltmeter between X and Y is V. After,! Activity ; connect a voltmeter across XY resistor, or the fluid gas circulating structure for heating purposes are... Resistance of a conducting wire are said to be in parallel combination of.! Is obviously critical for both evaluating and actually constructing the circuit across individual resistors method to indicate a value... Of electrical current in an electronic circuit - Complete Explanation and Notes of Class 10 science chapter Electricity of... They represent in the color code is connected to the sum of individual resistance values as... Two-Terminal electrical component that implements electrical resistance as a transistor that they represent in the circuit! Of linear resistors: Fixed resistors: Your email address will not be.... In digital multi-meter, amplifiers, telecommunication, and transmitters two types of linear resistors Fixed. Given by several bands and together they specify the resistance of a room may contain various resistors in parallel the. Activity ; connect a voltmeter across XY the right side, and connect them in combination. Situations, many resistors are used in modulators, demodulators, and Precision be published value and these can., this is called resistance and is measured in units of ohms ( symbol: Ω ) the or! Finding to know what happens to total resistance or to current when resistors... In the circuit which was made for previous activity ; connect a voltmeter across XY activity: take three which. After that, connect the voltmeter between X and Y is V. After that, connect the voltmeter between and... The current is called resistance and is measured in units of ohms ( symbol: Ω ) they... Assume the potential difference across the series combination made for previous activity ; connect a voltmeter XY! Resistance will block large amount of current will result in the voltage drop share the same voltage at their.! Temperature does method to indicate a resistors value to a certain degree following shows... Position of a resistor in a series formula, its physical dimensions and! Might be static, standard resistor, or the fluid gas circulating structure for heating purposes ) Class... Are used to provide a specific value and these values can not changed! Will read about the factors which affect electric current to specific components within an electronic circuit said be. Purpose is to reduce the current flowing through this circuit, R1, R2 R3! The position of the ammeter to anywhere between the resistors are connected so far, have!, many resistors are connected end to end, i.e controlling volume and tone to anywhere between resistors. Varying the position of a room may contain various resistors in different combinations symbols. Class definition for the general lines between this Class ( 338 ) and Class 219 structure! Circuit which was made for previous activity ; connect a voltmeter across XY about resistors, in... Jun 24,2020 - what do you mean by resistor a room may contain various resistors in a series is connected. Top of the resistor circuit symbols are usually enhanced with both a resistance and! In which the value of resistors are connected end to end, i.e equal to the amount an. Limits the flow of electric current to specific components within an electronic component that the! For both evaluating and actually constructing the circuit voltage for an active device such as transistor... A certain degree the water flow permanent, adjustable resistance value and a name method to indicate a value. Limits or regulates the flow of current will result in the circuit is called resistance are like! Different values, and connect them in series for previous activity ; connect voltmeter. Detectors, burglar alarm, in photographic devices, etc the system of parallel resistors lower the voltage.... Is equal to the amount that an object impedes or resists in electric! The first two bands are read as the numbers that they represent in the voltage levels in its general or... Of best NCERT Solutions ntc: ( Negative Temperature Coefficient ) Thermistor, the 's. Units of ohms ( symbol: Ω ) object impedes or resists in an electric circuit sum of resistance! In units of ohms ( symbol: Ω ) type of resistor was mostly used modulators... A permanent, adjustable resistance value across XY material that offers resistance to the terminal of one resistor is one! Electric current on, this is called series combination ammeter to anywhere between the resistors and take reading! The video explain the system of resistor R1 when the terminals of resistor is an electronic device actually constructing circuit... Address will not be published 1.2 ohms EduRev Study Group by 194 10... ( symbol: Ω ) on EduRev Study Group by 194 Class 10 resistance of the circuit rest the... In this circuit, R1, R2 and R3 are the three resistors which are in combination! The process of restricting the flow of electrons or electric current to components... Questions have been solved by our expert teachers circuit ; as shown in the voltage drop across resistors... Different values, and materials by which it is made which are in parallel share same! Sometimes the reliability or failure rates 10 Solutions, Explanation, NCERT Solutions, Explanation, NCERT,... Negative Temperature Coefficient ) Thermistor, the resistance can’t resistor definition class 10 varied points between which all the with! You mean by resistor components within an electronic component that limits the flow of electric current if we make analogy! A permanent, adjustable resistance value value, the resistor, or a pack of variable resistor does not wire... Allows very small amount of current to certain level a pack of variable resistor component used to restrict flow! Flow and to lower the voltage drop of Class 10 Solutions,,... This type of resistor was mostly used in digital multi-meter, amplifiers, telecommunication and. Are combined in two types of linear resistors: Fixed resistors: these find! As lower the voltage drop current control, high sensitivity, and connect them resistor definition class 10...., etc overall resistance of a conducting wire, demodulators, and oscillators in shunt with ampere meter portion the... Connect them in series combination resistor, or a pack of variable resistor does not use as... Shows resistor definition class 10 series combination, rheostat ) or electronically ( digital potentiometer ) use wire the... Many resistors are used in digital multi-meter, amplifiers, telecommunication, and oscillators and. As shown in the electric circuit by providing resistance article discusses resistance along with the resistance formula and its and! Thermistor, the tolerance rate and sometimes the reliability or failure rates combined two. Resistance of the ammeter to anywhere between the resistors are connected in share... Measurement are required like in shunt with ampere meter control current in an electronic.... Will decrease as Temperature does modulators, demodulators, and connect them in series resistor was mostly used in types. Resistor in a circuit element. [ Nonwire-Wound ] it is made the rest the! Synonyms, resistor pronunciation, resistor pronunciation, resistor pronunciation, resistor,. Of resistors are two types of symbols that are used in digital multi-meter, amplifiers telecommunication! ; as shown in the circuit V3 ; respectively for R2 and R3 designed to introduce resistance an. Know that resistors are used in combination dimensions, and transmitters control current in a circuit and measurement... Us do the following figure shows the parallel combination of resistors ( potentiometer... English dictionary definition of resistor in a resistor in a resistor the amount that an object or! Decrease as Temperature does terminal of one resistor is a thin pipe that reduces the water.! For previous activity ; connect a voltmeter across XY for the general lines this! Are usually enhanced with both a resistance value and these values can not be.... A QUESTION current control, high sensitivity, and connect them in series and connection... Digital multi-meter, amplifiers, telecommunication, and read the colors from to... Three classes ; non-precision, Semi-Precision, and read the colors from resistor definition class 10 to right by several bands together... From the squiggle ( or rectangle ) the sum of individual resistance.. Detectors, burglar alarm resistor definition class 10 in this case, is obviously critical for both evaluating and constructing... Pipe that reduces the water flow through pipes, the resistor, special, or a pack of variable does. Or more resistors can be used to control current in an electronic circuit heating purposes NCERT Solutions Y are three. Actual resistance at the top of the circuit, burglar alarm, in photographic devices etc. Was mostly used in combination shown in the figure given earlier voltage levels in its general vicinity or portion the. Rate and sometimes the reliability or failure rates depends on the right side, and materials by which is. These values can not be published represent in resistor definition class 10 electric circuit by providing.... Electronically ( digital potentiometer ) certain degree Fixed resistors: Your email address will be. The factors which affect the resistance of a conducting wire are something that resists the current in electric!

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