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In a series LCR circuit, the voltages ac...

In a series LCR circuit, the voltages across R, L and Care as shown in the figure. The voltage of applied source is:

A

10 V

B

70 V

C

100V

D

50 V

Text Solution

Verified by Experts

The correct Answer is:
d
`V = sqrt(V_R^2 + (V_L - V_C)^2)`
`= sqrt((40 V)^2 + (60 V - 30 V))`
`= sqrt((40)^2 + (30)^2 ) = 50 V`
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