PU M 2026 Current Electricity Free Quiz 4

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PU M 2026 Current Electricity Free Quiz 4

PU M Quiz

10:00

Answered: 0 / 4

Remaining: 4

Navigator 4 Q

General

General 4 MCQs

31. What principle does a potentiometer work on?

A. V ∝ I B. V ∝ L C. V ∝ R D. V ∝ A

32. What is the potential gradient in a potentiometer?

A. k = I/L B. k = R/L C. k = V/L D. k = P/L

33. What is the null point in a potentiometer?

A. No deflection B. Maximum deflection C. Minimum deflection D. Infinite deflection

34. If the balancing length for a cell is 50 cm and the potential gradient is 0.2 V/cm, what is the EMF of the cell?

A. 5 V B. 10 V C. 15 V D. 20 V

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