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Byju's Answer

Standard XII

Physics

Symmetry in Circuits

The figure sh...

Question

The figure shows a part of a complete circuit. The potential difference $V_{B} - V_{A}$ when the current $I$ is $5 A$ and is decreasing at a rate of $10^{3} {As}^{- 1}$ is given by

15 V

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10 V

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- 15 V

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20 V

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Solution

The correct option is C $- 15 V$
The circuit can be redrawn as shown.

From Kirchhoffs voltage law
$V_{A} - 1 \times 5 - 15 + 5 = V_{B}$
$V_{B} - V_{A} = - 15 V$

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The figure shows a part of a complete circuit. The potential difference VB–VA when the current I is 5 A and is decreasing at a rate of 103 As–1 is given by

The correct option is C −15 VThe circuit can be redrawn as shown. From Kirchhoffs voltage law VA−1×5−15+5=VB VB−VA=−15 V

The figure shows a part of a complete circuit. The potential difference $V_{B} - V_{A}$ when the current $I$ is $5 A$ and is decreasing at a rate of $10^{3} {As}^{- 1}$ is given by

The correct option is C $- 15 V$
The circuit can be redrawn as shown.

From Kirchhoffs voltage law
$V_{A} - 1 \times 5 - 15 + 5 = V_{B}$
$V_{B} - V_{A} = - 15 V$