MHT CET 2025 Physics question

Kirchhoff's voltage law and current law are based (respectively) on the conservation of

(A)momentum, charge
(B)energy, chargeCorrect
(C)charge, momentum
(D)charge, energy

Answer: (B)

Solution

Kirchhoff's voltage (loop) law states that the algebraic sum of potential differences around a closed loop is zero; this expresses conservation of energy (a charge returning to its starting point has no net change in potential energy). Kirchhoff's current (junction) law states that

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Question ID VK-102954