Q. A copper voltmeter and a silver voltmeter are connected in series in a circuit. The rate of the increase in the weight of the cathode in the two voltmeters will be in the ratio of
A) Atomic weights of Cu and Ag
B) Densities of Cu and Ag
C) Half of the atomic weight of Cu to the atomic weight of Ag
D) Half of the atomic weight of Ag to half the atomic weight of Cu
Explanation
(c) The ratio of the weights deposited on cathodes will be in the ratio of their chemical equivalents. The chemical equivalent of copper = At. Wt/2 and that of silver = At. Wt/1.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.