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 i $s ______$ W.

Question

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 i s ______ W.

G1 Physics · Accepted Answer

Image Equivalent resistance of the entire circuit: Rₑq = 4/3 Ω Therefore, P = V²/Rₑq = 2²/(4/3) = 4 × 3 4 \frac{3}{4} 4 3 ​ = 3 W