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Q. How many coulombs of electricity are consumed when a 100 mA current is passed through a solution of $AgNO_3$ for half an hour during an electrolys is experiment ?

Electrochemistry

Solution:

$100 \,mA = 10^2 \times 10^{-3} \,amp. = 0.1\, amp$
Quantity of electricity
$= 0.1 \times 0.5 \times 60 \times 60 = 180\, C$