In an LCR circuit, the current and emf differ in phase by $\Phi$. The value of $\Phi$ is:

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

In an LCR circuit, the current and emf differ in phase by $\Phi$. The value of $\Phi$ is:}

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

$\Phi = \tan^{-1}\left[\frac{(X_L + X_C)}{R}\right]$

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

$\Phi = \tan^{-1}\left[\frac{R}{(X_L + X_C)}\right]$

	LIST I	LIST II
A.	Intrinsic semiconductor	I. Used as a rectifier circuit
B.	N-Type Semiconductor	II. Pure form of Semiconductor
C.	P-Type Semiconductor	III. Doping of pentavalent impurity in semiconductor
D.	P-N Junction diode	IV. Doping of trivalent impurity in semiconductor