Attracted-disc type electrostatic instruments & its application

Q.  In electrostatic voltmeters, the principle of their operation is the force of attraction between electric charges on neighboring plates between which potential difference is maintained. The attracted-disc type electrostatic instruments are used for the measurement of
- Published on 05 Nov 15

a. Very low voltages
b. Low voltages
c. High voltages
d. Very high voltages

ANSWER: Very high voltages

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