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Resistance and Resistors

The potential...

Question

The potential difference between A and B in the following figure is:

$32 V$

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$48 V$

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$24 V$

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$14 V$

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Solution

The correct option is B
$48 V$

$V_{A} - V_{B} = 2 \times 6 + 12 + 9 \times 2 - 4 + 2 \times 5 = 12 + 12 + 18 - 4 + 10 V_{A} - V_{B} = 48 V$

$∴$ Sign conventions
For potential drop = +ve
For potential rise = –ve
In current direction = +ve
In reverse to current = –ve

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Similar questions

Find the potential difference $V_{a} - V_{b}$ in the circuits shown if figure (32-E12).

Figure 32 - E12

(V_{A} - V_{B})

A

B

V_{A B})

A

B

B

C

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