Consider the following statements: Sphere gap method of vol

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Electronics Engineering

6

M: +2.00/-0.66

Consider the following statements:
Sphere gap method of voltage measurement is used
1) for measuring r.m.s. value of a high voltage
2) for measuring peak value of a high voltage
3) as the standard for calibration purposes
Which of the above statements are correct?

[ESE (IES) EC 2017 Technical]

A 1 and 2 only

B 2 and 3 only

C 1 and 3 only

D 1, 2 and 3