NEET UG PHYSICS MCQ: ALTERNATING CURRENT

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Power factor of an L-R series circuit is 0.6 and that of a C-R series circuit is 0.5 . If the elements (

L, C

and

R

) of the two circuit are joined in series the power factor of this circuit is found to be 1. The ratio of the resistance is L-R circuit to the resistance in the C-R circuit is

View answer and explanation

Correct option: D

\frac{3 \sqrt{3}}{4}

Option D (

\frac{3 \sqrt{3}}{4}

) is correct because it is the ratio of the resistances calculated from the given power factors and the condition of resonance.

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