Question

What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of a battery to
the other?
a) 12.5 V (b) 0.08 V (c) 5000 V (d) 125 V


please answer as fast as posible

please it's an urgent​

Answer 1

$\Large\bf{\color{indigo}GiVeN,}$

• Work done (W) to transfer a charge from one terminal of a battery to the other is 250 J.

• Charge (q) moved is 20 C.

$\Large\bf{\color{coral}To\:FiNd,}$

• The potential difference between two terminals of battery.

$\Large\bf{\color{lime}CaLcUlAtIoN,}$

$\bf\blue{We\:know\:that,}$

$\red\bigstar\:\:{\green{\boxed{\bf{\color{peru}Potential\:difference\:(V)\:=\:\dfrac{Work\:Done\:(W)}{Charge\:(q)}\:}}}}$

$:\implies\:\:\bf{V\:=\:\dfrac{250}{20}\:}$

$:\implies\:\:\bf{V\:=\:\dfrac{25}{2}\:}$

$:\implies\:\:\bf\purple{V\:=\:12.5\:volt}$

$\Large\bold\therefore$ (a) The potential difference between two terminals of the battery is 12.5 V.