Question

A coil is tuner to resonance at 3 mhz with resonation capacitance of 12 pf . At 1 mhz the resonance is obtained with a resonationg capacitance value of 360 pf . Find the self capacitance of the coil.

Answer 1

The combined effect of resistance R, inductive reactance XL, and capacitive reactance XC is defined to be impedance, an AC analogue to resistance in a DC circuit. Current, voltage, and impedance in an RLC circuit are related by an AC version of Ohm’s law:

I

0

=

V

0

Z

or

I

rms

=

V

rms

Z

.

Here I0 is the peak current, V0 the peak