Question 511 Mark
The potential difference between two points is 20 volts. How much work will be required to move $4 \times 10^{-4}$ coulombs charge from one point to another?
Answer
View full question & answer→Work $(W)=$ Charge $(q)$ $\times$ potential difference (V)
$=4 \times 10^{-4} \times 20=8 \times 10^{-3}$ joules
$=4 \times 10^{-4} \times 20=8 \times 10^{-3}$ joules