Question

Question 9
Which of the following represents voltage?

(a) $\frac{Workdone}{Current\times Time}$
(b) $Workdone\times Charge$
(c) $Workdone\times \frac{Time}{Current}$
(d) $Workdone\times Charge\times Time$

Answer 1

(a) $\frac{Workdone}{Current\times Time}$


It a charge q is taken from the terminal B to the terminal A, the work done by the battery force F is W = Fd
$Voltage\left(V\right)=\frac{Workdonebybattery}{charge}$
$\Rightarrow V=\frac{W}{q}$
We know that current, I = $\frac{q}{t}$
$\Rightarrow V=\frac{W}{It}$