1.

When A.C. current with frequency v is passed through series connection of inductor and capacitor, current obtained is maximum. Now when they are connected in parallel, current would become minimum at ……… frequency.

Answer»

V
`v/2`
2v
`v^2`

Solution :For SERIES LC combination, maximum current is obtained at resonant frequency `1/(2pisqrt(LC))` there IMPEDANCE minimum.
For parallel LC combination, minimum CURRENTIS obtained at resonant frequency `1/(2pisqrt(LC))`
Here, impedance is maximum.
Thus, in above cases, resonant FREQUENCIES are same.


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