A coil having an inductance of `1//pi` henry is connected in series with a resistance of `300 Omega`. If 20 volt from a 200 cycle source are impressed across the combination, the value of the phase angle between the voltage and the current is :A. `"tan"^(-1) (5)/(4)`B. `"tan"^(-1) (4)/(5)`C. `"tan"^(-1) (3)/(4)`D. `"tan"^(-1) (4)/(3)`

A coil having an inductance of `1//pi` henry is connected in series wi

1.	A coil having an inductance of `1//pi` henry is connected in series with a resistance of `300 Omega`. If 20 volt from a 200 cycle source are impressed across the combination, the value of the phase angle between the voltage and the current is :A. `"tan"^(-1) (5)/(4)`B. `"tan"^(-1) (4)/(5)`C. `"tan"^(-1) (3)/(4)`D. `"tan"^(-1) (4)/(3)`
Answer» Correct Answer - D `X_(L) = 2 pi f L = 2 pi xx 200 xx (1)/(pi) = 400 Omega` `R = 300 Omega` `tan phi = (X_(L))/(R ) = (400)/(300) = (4)/(3)` `implies phi = tan^(-1) ((4)/(3))`

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