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What is the effect of the increase in temperature on the resistance elements?

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What is the effect of the increase in temperature on the resistance elements?

(a) directly proportional

(b) independent

(c) inversely proportional

(d) changes by a factor of 10

The question was asked in semester exam.

Asked question is from Measurement Errors in a Wheatstone Bridge topic in division Measurement of Resistance of Electrical Measurements

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The correct option is (a) directly proportional

To explain: Temperature affects resistance of the circuit. Resistance has a positive temperature coefficient and increases linearly with rise in temperature.

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