To reduce the resonant frequency in an LCR series circuit with a generator,
To reduce the resonant frequency in an LCR series circuit with a generator,
A. the frequency of the generator should be reduced
B. another capacitor should be connected is parallel with the first capacitor
C. the iron core of the inductor should be removed
D. the dielectric in the capacitor should be removed
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Correct Answer - B
`f=1/(2pisqrt(LC))`
`therefore` To reduce f either L or C or both has to be increased.
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