Resistivity of Various Materials

IMPORTANT

Resistivity of Various Materials: Overview

This topic covers concepts, such as, Resistivity of Various Materials, Types of Resistors, Wire Bound Resistors, Carbon Resistors, Materials, Classification of Materials, Insulators & Semiconductors etc.

Important Questions on Resistivity of Various Materials

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Carbon resistors are commonly used to calibrate resistance.

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A wire-wound resistor is an electrical _____ component that limits current. 

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What are insulators? Give example.

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The carbon resistor can produce a high accuracy value of ___________.

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The most significant advantage of the carbon resistor is its ability to withhold _____ energy pulses.

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Carbon resistor is one of most common types of electronic used.

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What is a carbon resistor?

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_____ resistors have a specific value and these values cannot be changed.

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What are the eight types of resistors?

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In Insulators electric current can flow freely

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Which of the following materials is an insulator?

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A wire wound resistor is an electrical passive device that limits or restricts _____ flow in a circuit.

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A wire wound resistor is an electrical passive component that limits current. 

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What is wire bound resistor?

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Insulators cannot be charged by _____ (conduction/induction).

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Cotyledons are also called-

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The distinction between conductors, insulators and semiconductor is largely concerned with

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Assertion: The resistivity of the semiconductor decreases with increase of temperature.

Reason: In a conducting solid, the rate of collision between free electrons and ions increases with increase of temperature.

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The thermistors are usually made of

MEDIUM
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If in a triode valve amplification factor is 20 and plate resistance is 10 , then its mutual conductance is :