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Factors Affecting Resistance & How They Affect

In the circui...

Question

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

A

+ 1 V

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B

- 1 V

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C

+ 2 V

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D

- 2 V

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Solution

The correct option is A $+ 1 V$
Along the path ACDB
$V_{B} = V_{A} + 1 V + 2 \times 1 V - 2 V = 0 + 1 + 2 - 2 = 1 V$

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