Q. In water voltmeter, the electrolysis of …… takes place
A) $H_{2}O$
B) $H_{2}SO_{4}$
C) $H_{2}O\ and\ H_{2}SO_{4}\ both$
D) $H_{2}\ $and $O_{2}$
Explanation
(a) Because $H_{2}O$ is used as electrolyte
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.