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प्रश्न
In an a.c. circuit containing L, C, R is series, the ratio of true power to apparent power is (Z = impedance of the circuit, R = resistance, `phi` = phase difference between the r.m.s. values of current and e.m.f.) ____________.
पर्याय
`"R"/"Z"`
`"Z"/"R"`
`cot phi`
RZ
MCQ
रिकाम्या जागा भरा
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उत्तर
In an a.c. circuit containing L, C, R is series, the ratio of true power to apparent power is `"R"/"Z"`.
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Types of AC Circuits
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