A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 500 pF, resonance is obtained with a resonating capacitor of 360 pF. The self capacitance of coil is

A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 5

1.	A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 500 pF, resonance is obtained with a resonating capacitor of 360 pF. The self capacitance of coil is
A.	12 pF
B.	24 pF
C.	30 pF
D.	72 pF
Answer» C. 30 pF