In a piezoelectric generator, the quartz crystal is made to oscillate at its natural frequency of L.C circuit to produce ultrasonic waves of 1 MHz with a capacitor of the capacitance of 25 nF in the tank circuit. Then, the inductance of the coil used in the tank circuit is nearly:

In a piezoelectric generator, the quartz crystal is made to oscillate

1.	In a piezoelectric generator, the quartz crystal is made to oscillate at its natural frequency of L.C circuit to produce ultrasonic waves of 1 MHz with a capacitor of the capacitance of 25 nF in the tank circuit. Then, the inductance of the coil used in the tank circuit is nearly:
A.	3 μH
B.	2 μH
C.	1 μH
D.	4 μH
Answer» D. 4 μH

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In a piezoelectric generator, the quartz crystal is made to oscillate at its natural frequency of L.C circuit to produce ultrasonic waves of 1 MHz with a capacitor of the capacitance of 25 nF in the tank circuit. Then, the inductance of the coil used in the tank circuit is nearly:

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