In an electroplating experiment, `m` gram of silver is deposited when `4` ampere of current flows for `2` minute. The amount (in`g`) of silver deposite by `6` ampere of current for `40` second will be

Options

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

Answer

B

Explanation

`m = Z it`
`(m_1)/(m_2) = (i_1t_1)/(V_2t_2)`
`(m)/(m_2) = (4xx2)/(6xx(40//60)) implies m_(2) = m//2`.