The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity `omega` isA. `R//omegaL`B. `R//(R^(2)+omega^(2)L^(2))^(1//2)`C. `omegaL//R`D. `R//(R^(2)-omega^(2)L^(2))^(1//2)`

The power factor of an AC circuit having resistance (R) and inductance

1.	The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity `omega` isA. `R//omegaL`B. `R//(R^(2)+omega^(2)L^(2))^(1//2)`C. `omegaL//R`D. `R//(R^(2)-omega^(2)L^(2))^(1//2)`
Answer» Correct Answer - B `cos varphi=R/Z=R/((R^(2)+omegaL^(2))^(1//2))`

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The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity `omega` isA. `R//omegaL`B. `R//(R^(2)+omega^(2)L^(2))^(1//2)`C. `omegaL//R`D. `R//(R^(2)-omega^(2)L^(2))^(1//2)`

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