Which, among the following, is the correct expression for φ. – McqOptions

MCQOPTIONS

1.	Which, among the following, is the correct expression for φ.
A.	φ=tan-1 (XL/R)
B.	φ=tan-1 (R/XL)
C.	φ=tan-1 (XL*R)
D.	φ=cos-1 (XL/R)
Answer» B. φ=tan-1 (R/XL)

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