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JEE Main202431 Jan 2024Evening ShiftPhysicsCurrent ElectricityActual

In the following circuit, the battery has an emf of 2 V and an internal resistance of 2 3 Ω . The power consumption in the entire circuit is ______ W .

Correct answer

0

Step-by-step solution

As we can see, two resistances of 2 Ω in the middle portion(in both left and right side) are in parallel, so their combined resistance will be 2 × 2 2 + 2 + 2 × 2 2 + 2 = 2 Ω . Now this resistance along with the topmost & bottommost resistance are in parallel again, so total resistance of the circuit will be, R eq = 2 3 + 2 3 = 4 3 Ω ∴ P = V 2 R eq = 4 4 3 = 3 W

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