Question

In the condition of resonance in a circuit the value of inductance is 0.1 H, value of capacitance is 200 microfarad and resistance is 20 Ω. For the same resonance frequency of the value of inductance V= 100H, them find necessary capacitance of the circuit.
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Answer 1

At resonance ,

Impedance Z=R=200Ω

Resonance Frequency f

r

=

LC

2π

=

100×10

−3

×0.1×10

−6

2π

=2π×10

4

Hz