A copper and silver voltmeter are connected in parallel. If 2000 C of charge liberates the same mass of copper and silver, then charge flowing in copper voltmeter is $\lbrack Z\left( Cu = 3.36 imes 10^{- 7}\ kg\ C^{- 1},\ Z(Ag) = 1.008 imes 10^{- 6}kgC^{- 1} ight brack$

Question

A copper and silver voltmeter are connected in parallel. If 2000 C of charge liberates the same mass of copper and silver, then charge flowing in copper voltmeter is $\lbrack Z\left( Cu = 3.36 	imes 10^{- 7}\ kg\ C^{- 1},\ Z(Ag) = 1.008 	imes 10^{- 6}kgC^{- 1} ightbrack$

Dr. Abubacker · Accepted Answer

(b) Let $q$ be the charge flowing through copper voltmeter.
The charge flowing through silver voltmeter $= (2000 - q)$
Now, $m = z_{Cu}q = z_{Ag} 	imes (2000 - q)$;
$	herefore q = \frac{Z_{Ag}}{Z_{Cu}} 	imes (2000 - q)$
$= \frac{1.008 	imes 10^{- 6}}{3.36 	imes 10^{- 7}} 	imes (2000 - q)$
$\ q = 1500$ C

Q. A copper and silver voltmeter are connected in parallel. If 2000 C of charge liberates the same mass of copper and silver, then charge flowing in copper voltmeter is $\lbrack Z\left( Cu = 3.36 \times 10^{- 7}\ kg\ C^{- 1},\ Z(Ag) = 1.008 \times 10^{- 6}kgC^{- 1} \right\rbrack$

Explanation

Reviewed by Dr. Abubacker

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