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Question
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.) ____________.
Options
`"R"/"Z"`
`"Z"/"R"`
`cot phi`
RZ
MCQ
Fill in the Blanks
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Solution
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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