How to protect the meter against high voltages in series resistance failure?

Q.  To protect the meter against high voltages in case the series resistance fails, the suitable protective device is
- Published on 21 Dec 15

a. Paper gap
b. Neon glow tube
c. Zener diode
d. All of these

ANSWER: All of these

Post your comment / Share knowledge


Enter the code shown above:
 
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)