Current Electricity Charging Discharging Of Capacitors Question 61

Question: A steady current of 5 amps is maintained for 45 mins. During this time it deposits 4.572 gms of zinc at the cathode of a voltameter. E.C.E. of zinc is

[MP PET 1994]

Options:

A) $ 3.387\times {{10}^{-4}}gm/C $

B) $ 3.387\times {{10}^{-4}}C/gm $

C) $ 3.384\times {{10}^{-3}}gm/C $

D) $ 3.394\times {{10}^{-3}}C/gm $

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Answer:

Correct Answer: A

Solution:

$ m=Zi,t $

Therefore $ Z=\frac{m}{i,t} $

$ =\frac{4.572}{5\times 45\times 60}=3.387\times {{10}^{-4}},gm/C $