MHT CET 2025 Physics question

PhysicsElectromagnetic InductionMHT CET 2025

Two circuits A and B are connected to identical d.c. sources each of e.m.f. 10 volt. Self-inductances of circuits A and B are respectively = 10 H and = 10 mH. The total resistance of each circuit is 40 . The ratio of energy consumed in circuit A and circuit B to build up the current to steady value is

Answer: (B)

Solution

The steady current is A in both circuits, since only limits the final current. The energy needed to build the current up to this value is the energy stored in the inductor, . Because is the same,

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Question ID VK-103055