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The instantaneous values of current and ...

The instantaneous values of current and voltage in an AC circuit are `i=100sin314t` amp and `e=200sin(314t+pi//3)V` respectively. If the resistance is `1Omega` then the reactance of the circuit will be

A

`-200sqrt(3) Omega`

B

`sqrt(3) Omega`

C

`-200//sqrt(3) Omega`

D

`100sqrt(3) Omega`

Text Solution

Verified by Experts

The correct Answer is:
B

`V_(0)=i_(0)Z implies 200=100Z implies Z=2 Omega`
Also `Z^(2)=R^(2)+X_(L)^(2) implies (2)^(2)=(1)^(2)+X_(L)^(2)impliesX_(L)=sqrt(3)Omega`
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