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Electric Potential at a Point in Space Due to a Point Charge Q

Using Kirchof...

Question

Using Kirchoff's law how can you find the potential at A where potential at B is zero

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Solution

$V_{A} - i (5) - 2 = V_{B}$
$\Rightarrow V_{A} - 5 - 2 = 0$
$\Rightarrow V_{A} = 7 V$
$∴$ Potential at $A$ is $7 V .$
we get,
$V_{A} = 7 V .$

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