Two small spheres each carrying a charge q are placed 1 m apart. The electric force between them is F. If one sphere is taken around the other. The work done is :

Question

Two small spheres each carrying a charge q are placed 1 m apart. The electric force between them is F. If one sphere is taken around the other. The work done is : (A) F (B) 2π F (C) F/2π (D) zero

Tardigrade Admin · Accepted Answer

Electric field is conservative. So, work done in taking a charge on the closed path is zero.

Q. Two small spheres each carrying a charge $q$ are placed $1 m$ apart. The electric force between them is $F$ . If one sphere is taken around the other. The work done is :

F

$2 π F$

$F /2 π$

zero

Electric field is conservative. So, work done in taking a charge on the closed path is zero.

Q. Two small spheres each carrying a charge q are placed 1m apart. The electric force between them is F. If one sphere is taken around the other. The work done is :

F

2πF

F/2π

zero

Electric field is conservative. So, work done in taking a charge on the closed path is zero.

Q. Two small spheres each carrying a charge $q$ are placed $1 m$ apart. The electric force between them is $F$ . If one sphere is taken around the other. The work done is :

$2 π F$

$F /2 π$