1.

What is φ in terms of voltage?#

A. φ=cos<sup>-1</sup>V/VR
B. φ=cos<sup>-1</sup>V*VR
C. φ=cos<sup>-1</sup>VR/V
D. φ=tan<sup>-1</sup>V/VR
Answer» D. ‚âà√¨‚àö√∫=tan<sup>-1</sup>V/VR


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