A positive point charge with velocity  enters a region having electric field  and magnetic field . Which one of the following statements is correct for the force on the charge as it enters the region?

In the figure, the electric field  and the magnetic field  point to  and  directions, respectively, and have constant magnitudes. A positive charge '  ' is released from rest at the origin. Which of the following statement(s) is/are true.

One coulomb of point charge moving with a uniform velocity enters the region x ≥ 0 having a magnetic flux density

. The magnitude of force on the charge at  is ________ N.

( and  are unit vectors along x-axis, y-axis, and z-axis, respectively.)

The magnetic vector potential in a region is defined by.  An infinitely long conductor, having a cross section area,
 and carrying a dc current, I = 5A in the y direction, passes through this region as shown in Figure.

Determine the expression for (a)  and (b) force density  exerted on the conductor.

An electron with velocity u is placed an electric field E and magnetic field B. the force experienced by the electron is given by

An electron moves in the X-Y plane with a speed of . Its velocity vector makes an angle of  with X-axis. A magnetic field of magnitude  T exists along the Y-axis. Compute the magnetic force exerted on the electron and its direction.

When a transformer winding suffers a short-circuit, the adjoining turns of the same winding experience