In an electroplating experiment `m` g of silver is deposited, whe `4` amperes of current flows for `2` mimtes. The amout (in g) of silver deposited by `6` amperes of current flowing for ` 40` seconds will be .

Options

A. `4 m`
B. `m//4`
C. `m//2`
D. `2/m`

Answer

C

Explanation

` m=Zxx 4 xx 120 , M =Z xx 6 xx 40`
` M/m= (6 xx 40)/( 4 xx120) = 1/2 , M=m//2`.