PU E 2026 Current Electricity Free Quiz 3

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PU E 2026 Current Electricity Free Quiz 3

PU E Quiz

10:00

Answered: 0 / 10

Remaining: 10

Navigator 10 Q

General

General 10 MCQs

21. When current flows through a cell, terminal voltage is:

A. Less than EMF B. Greater than EMF C. Equal to EMF D. Zero

22. What does Kirchhoff's second law state?

A. Sum of currents entering = sum of currents leaving B. Sum of voltage drops = sum of EMFs C. V = IR D. P = VI

23. At a junction, I₁=2A enters, I₂=3A enters, and I₃ leaves. What is I₃?

A. 1 A B. 6 A C. 5 A D. 3 A

24. What is the application of Kirchhoff's laws?

A. Only for simple circuits B. Only for AC circuits C. Only for parallel circuits D. For analyzing complex circuits

25. What is true about current in a series circuit?

A. Current is same through all components B. Current is different through different components C. Voltage is same across all components D. Power is same across all components

26. What is a Wheatstone bridge used for?

A. Used to measure resistance B. Used to measure current C. Used to measure voltage D. Used to measure power

27. What is the balance condition for a Wheatstone bridge?

A. P = Q B. P/Q = R/S C. R = S D. P = R

28. In a balanced Wheatstone bridge, P = 10 Ω, Q = 20 Ω, R = 15 Ω. What is S?

A. 15 Ω B. 10 Ω C. 20 Ω D. 30 Ω

29. Which instrument uses the Wheatstone bridge principle?

A. Metre bridge B. Potentiometer C. Galvanometer D. Ammeter

30. What is a potentiometer used for?

A. Measures EMF without drawing current B. Measures current C. Measures resistance D. Measures power

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