JEE MAIN - Physics (2022 - 28th June Evening Shift - No. 22)
In the given circuit, the magnitude of VL and VC are twice that of VR. Given that f = 50 Hz, the inductance of the coil is $${1 \over {K\pi }}$$ mH. The value of K is ____________.
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Answer
0
Explanation
$${V_L} = 2{V_R}$$
So $$\omega Li = 2\,Ri$$
$$ \Rightarrow L = {{2R} \over \omega } = {{2 \times 5} \over {2\pi \times 50}} = {1 \over {10\pi }}H = {{100} \over \pi }H$$
So $$k = {1 \over {100}} \simeq 0$$
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