In the shown circuit, if potential at point A is taken to be zero, the potential at point B is: [Diagram: Image]
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In the shown circuit, if potential at point A is taken to be zero, the potential at point B is: [Diagram: Image]

G1 Physics · Accepted Answer

Step 1: Take Vₐ = 0. Follow the lower branch from A to C across the 1 V cell in the direction indicated: V𝒸 = −1 V. Step 2: The potential change from C to D across 2 Ω carrying 1 A is 2 V, using marked current direction. Step 3: Across the 2 V cell to B include polarity signs; the result is Vᵦ = −1 V.