Current Electricity Charging Discharging Of Capacitors Question 40

Question: A silver and zinc voltameter are connected in series and a current i is passed through them for a time t liberating W gm of zinc. The weight of silver deposited is nearly

[NCERT 1973, 76]

Options:

A) W

B) 1.7 W

C) 2.4 W

D) 3.5 W

Show Answer

Answer:

Correct Answer: D

Solution:

$ \frac{m _{Zn}}{m _{Ag}}=\frac{E _{Zn}}{E _{Ag}} $

Therefore $ m _{Ag}=W,( \frac{E _{Ag}}{E _{Zn}} ) $ = 3.3 W = 3.5 W