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In the circuit shown in the figure, if potential at point A is taken to be zero, the potential at point B is

1. -1V
2. +2V
3. -2V
4. +1V

Correct answer: -2V

Solution

To determine the potential at point B, we analyze the circuit and apply Kirchhoff's Voltage Law (KVL). If point A is at 0V and the potential difference across the components leads to a net decrease of 2V, the potential at B becomes -2V.

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