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A coil of resistance `300 Omega` and inductance 1.0 henry is connected across an voltages source of frequency `300//2pi Hz`. The phase difference between the voltage and current in the circuit isA. `(pi)/(2)`B. `(pi)/(4)`C. `(pi)/(3)`D. `(pi)/(6)` |
Answer» Correct Answer - B `X_(L) = 2 pi fL = 2pi xx (300)/(2 pi) xx 1 = 300 Omega , R = 300 Omega` `tan phi = (X_(L))/(R ) = 1 implies phi = (pi)/(4)` (lagging) |
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