Question

If a current 0.15 A flows through a wire for 60 s across two points having potential difference 15V then find the amount of charge that flows through the circuit and amount of work done required to transfer this charge

Answer 1

we know that q=ne and q= I×t
ne=It
$n = i \times t \times \frac{1}{e}$
and
$n = 0.15 \times 60 \times \frac{1}{1.6 \times {10}^{ - 19} }$
$n = 5.625 \times {10}^{19}$
we know that
$w = q \times v \\ so \: q = 9 \: C \: \: and \: V = 15 \: v \: \\ w = 15 \times 9 = 135 \: J$