Physics - EMI/AC Question with Solution | TestHub

a

Phase difference between current and voltage in a purely resistive AC circuit

i

$\frac{\pi }{2};$ current leads
voltage

b

Phase difference between current and
voltage in a pure inductive AC circuit

ii

zero

c

Phase difference between current and
voltage in a pure capacitive AC circuit

iii

$\frac{\pi }{2};$ current lags
voltage

d

Phase difference between current and
voltage in an LCR series circuit

iv

${\tan }^{-1}\left(\frac{X_C-X_L}{R}\right)$