Question

calculate the work done charge of 25 coulombs across 2 points with a potential difference of 20 v

Answer 1

Given:-

• Charge (Q) = 25 C

• Potential Difference (V) = 20v

To Find:-

• Work done (W)

Solution:-

As we know that

Potential difference between two point = work done/charge

→ P = W/Q

Substitute the value we get

→ 20 = W/25

→ W = 25 ×20

→ W = 500 Joule.

Extra Information !!

Potential Difference: The potential difference between two point in an electric circuit carrying some current as the work done to move a unit charge from one point to the other.

Potential difference = Work done /Charge.

V = W/Q

here

V is the potential difference

W is the work done

Q is the charge

✧ SI unit of electric potential energy is volt (V).

✧ 1 volt : The potential difference between two points in a current carrying conductor when one joule of work is done to move a charge of one coulomb from one point to other.

1 Volt = 1Joule/1Coulomb

Answer 2

☯️ Given :-

• Potential Difference = 20V.

• Charge = 25 C.

☯️ To Find :-

• Work Done.

☯️ Solution :-

We know that,

P = W/Q.

Now, Put the values.

➨ 20 = W/25.

➨ W = 25 × 20.

➨ W = 500 Joule.

✔ Hence, Work Done = 500 Joules.