A metal sphere has a diameter of 1m. What will be the amount of charge required to rate its potential by `2.7 xx 10^(6)V`?

Explanation

Radius, `R=(1)/(2)= 0.5 `m,
`C = 4pi in_0R = (1)/(9 xx 10^(9)) xx 0.5 = (0.5)/(9 xx 10^(9)) F`
The amount of charge required,
`Q = CV = (0.5)/(9 xx 10^(9)) xx (2.7 xx 10^(6))`
`= 1.5 xx 10^(-4) =150 xx 10^(-6) C = 150muC`