There is 10 units of charge at the centre of circle of radius 1 m. The work done in moving 1 unit of charge once around the circle is :

Question

There is 10 units of charge at the centre of circle of radius 1 m. The work done in moving 1 unit of charge once around the circle is : (A) 150 unit (B) 100 unit (C) 10 unit (D) zero

Tardigrade Admin · Accepted Answer

Here charge at centre =10 units, radius of circle (r)=10 m and charge moved around circle =1 unit, we know that when the charge is at the centre of a circle, the circumference will be equipotential, so work done in moving a charge around the circle is zero.

Q. There is $10$ units of charge at the centre of circle of radius $1 m$ . The work done in moving $1$ unit of charge once around the circle is :

150 unit

100 unit

10 unit

zero

Here charge at centre $= 10$ units, radius of circle $(r) = 10 m$ and charge moved around circle $= 1$ unit, we know that when the charge is at the centre of a circle, the circumference will be equipotential, so work done in moving a charge around the circle is zero.

Q. There is 10 units of charge at the centre of circle of radius 1m. The work done in moving 1 unit of charge once around the circle is :