In the above question , the nature of motion of the test charge is

In above question, the charge flown is :

In the above question, if the motion of the pulse and rotation of the loop, both are in same direction then the velocity of the pulse w.r.t. to ground will be:

A negative test charge is moving near a long straight wire carrying a current. The force acting on the test charge is parallel to the direction of the current. The motion of the charge is:

A negative test charge is moving mear a long straight wire carrying a current. The force acting on the test charge is parallel to the direction of the current. The motion of the charge is:

In the above question, the surface charge densities have the correct relation is-

Due to an electric charge Q , field intensity at the position of test charge q_0 is vecE . If the test charge is replaced by -q_0 , then field intensity becomes

What is a test charge ?