Ryall crest voltmeter is used for measurement of
A). AC voltage of any form
B). Low frequency voltage
C). High DC voltage
D). High AC voltage
1. The knee voltage of a crystal diode is approximately equal to ___________
2. The output voltage Vo of the above circuit is
3. A mobile satellite array has usually how many elements?
4. The duration of sudden short-circuit test on a synchronous motor is usually about
5. If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will
6. As the junction temperature increases, the voltage breakdown point for Zener mechanism ___________
7. With conventional hydrogen cooling it is possible to increase the rating of a single unit to
8. The minimum armature current of the synchronous motor corresponds to operation at
9. Piezo-electric transducers are
10. Air will not be the working substance in which of the following ?