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In a series LCR circuit R = 10 Omega and...

In a series LCR circuit `R = 10 Omega` and the impedance `Z = 20 Omega`. Then the phase difference between the current and the voltage is

A

`60^(@)`

B

`30^(@)`

C

`45^(@)`

D

`90^(@)`

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The correct Answer is:
A
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