Question

Calculate the amount of work done to carry 4 C from a point at 100V to a point at 120 V

Answer 1

Hey friend

Here is your answer.

Q(Charge)=4C
V(Potential difference) =120-100=20V

We know that

V=W/Q
20=W/4
W=20×4
W=80J

Hope this helps you

Answer 2

$\large\sf\underline\red{GIVEN:-}$

$\small\sf\purple{Electric\:potential\:difference=V=120-100}$

$\large\tt\purple{=20V}$

$\large\tt\pink{Q=4C}$

$\large\tt\green{V=\frac{W}{Q}}$

$\longrightarrow$$\large\tt\green{W=Q×V}$

$\longrightarrow$$\large\tt\green{V=20×4}$

$\longrightarrow$$\large{\boxed{\tt{\green{80J}}}}$