1.

An ideal inductor of `(1//pi)` is connected in series with a `300gamma` resistor If a `20V.200H_(z)` ac source is connected across the combination the phase difference between the voltage and the current is .A. `tan^(-5)/(4)`B. `ta n-^(1)4/5`C. `ta n-^(1)3/4`D. `ta n-^(1)4/3`

Answer» Correct Answer - D
`f = 200 Hz , omega = 2pi f = 400 pi rad//sec`
`X_(L) = omegaL = 400 pi xx (1)/(pi) = 400 Omega`
`tan phi = X_(l)/R = (400)/(300) implies phi =tan^(-1) ((4)/(3))` .


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