The value of voltage Vx for the circuit shown below—

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The value of voltage V_x for the circuit shown below—

1. 7V
2. 6V
3. – 6V
4. – 7V

Correct Option: A

The given circuit:

Applying potential divider rule

V_x = 9V ×	(18 + 3)
	(18 + 3 + 6)

or

V_x = 9 ×	21	= 7V.
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