A dipole with its charges -q and =q located at the points (0,-b,0) and (0,+b,0) is present in a uniform electric field E. The equipotential surfaces of this field are planes parallel to the YZ planes:- What is the direction of the electric field E?

A dipole with its charges -q and =q located at the points (0,-b,0) and (0,+b,1) is present in a uniform electric field E. The equipotential surfaces of this field are planes parallel to the YZ planes:- How much torque would the dipole experience in this filed?

A charge of 6 pCexperiencesforce of 0.24 N in an electric field. The potential gradient at this point is

Two point charges of magnitude +q and -q are placed at (-d/2, 0, 0) and (d/2, 0, 0) respectively. Find the equation of the equipotential surface where the potential is zero.

An electron of mass m, charge e falls through a distance h metre in a uniform electric field E. Then time of fall

Two charges 2 mu C and -2 mu C are placed at points A and B 6 cm apart. What is the direction of the electric field at every point on this surface?

Two charge of magnitudes - 4Q and + 2Q are located at points (2a, 0) and (5a, 0) respectively. What is the electric flux due to these charges through a sphere of radius 4a with its centre at the origin?

Two charges of magnitude -2Q and +Q are located at points (a,0) and (4a,0) respectively . What is the electric flux due to these charges through a sphere of radius '3a' with its centre at the origin?

Draw a neat labelled diagram of equipotential surface for a uniform electric field and for a electric dipole.

A toy car with charge moves on a frictionless horizontal plane surface under the influence of a uniform electric field vec E . Due to the force qvec E E. its velocity increases from 0 to 6 m/s in one second duration. At that instant the direction of the field is reversed. The car continues to move for two more seconds under the influence of this field. The average velocity and the average speed of the day car between 0 to 3 seconds are respectively

A rectangular coil 20cmxx20cm has 100 turns and carries a current of 1 A . It is placed in a uniform magnetic field B=0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is