Physics

Physics

Problem

Which of the following expressions gives the tangent of the phase angle ϕ\phi between the source voltage and the current in a series RLCRLC circuit? a) tan⁡ϕ=RXL−XC\tan\phi=\dfrac{R}{X_L - X_C} b) tan⁡ϕ=XL−XCR\tan\phi=\dfrac{X_L - X_C}{R} c) tan⁡ϕ=XL+XCR\tan\phi=\dfrac{X_L + X_C}{R} d) tan⁡ϕ=XC−XLR\tan\phi=\dfrac{X_C - X_L}{R}

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