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Q.

A coil of self – inductance  1π H is connected in series with a  300 Ω  resistance. A voltage of 200 V at frequency 200 Hz is applied to this combination.  The phase difference between the voltage and the current will be

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a

tan−1(34)

b

tan−1(14)

c

tan−1(54)

d

tan−1(43)

answer is A.

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Detailed Solution

tan ϕ = XLR = LωR = L × 2πfR ϕ = tan-1 (43)

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