The resistance of a conductor increases for a given material at constant temperature when:

its thickness increases

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its length increases

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its length decreases and thickness increases

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its length increases and thickness decreases

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Solution

The correct option is D its length increases and thickness decreases
Resistance is directly proportional to its length and inversely proportional to its thickness.
Hence the correct option is D.

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Question 3
Electrical resistivity of a given metallic wire depends upon

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The resistance of a conductor increases for a given material at constant temperature when:

The correct option is D its length increases and thickness decreasesResistance is directly proportional to its length and inversely proportional to its thickness.Hence the correct option is D.

The correct option is D its length increases and thickness decreases
Resistance is directly proportional to its length and inversely proportional to its thickness.
Hence the correct option is D.