There is a uniform magnetic field on the surface of a table. The direction of the field is parallel to the surface of the table. A straight wire segment, which carries a current, lies flat on the table. The magnitude of the magnetic force on the wire is maximum for which of the following case?

A charged particle moves in a circle in a plane perpendicular to a uniform magnetic field. Which of the following statement is FALSE?

Question 4 (cont.)

(c)   

Question 4

The blue spherical metal shell, which

is in electrostatic equilibrium, carries a net charge of +3 Coulomb.

(a)   

Question 4 (cont.)

(b)   

Question 3 (cont.)

(b)  

Question 3

There is a uniform electric field everywhere. The field direction

is +y and the field magnitude is 2 N/C.

(a)  

Question 1 (cont.)

(b)  

Question 2

A charged square box (with side length 0.5 m) carries a total

charge of 5 Coulomb that is distributed uniformly over its volume. Suppose we

place a Gaussian surface, shaped as a square box (with side length 0.2 m),

entirely inside the charged square box. Calculate the net charge inside the

Gaussian surface.

Question 1

A total positive charge is uniformly distributed on the surface of a spherical

thin shell (the cross section of the shell is shown as the black circle in

Figure 1). The red circle, which is concentric with the black circle, is the

cross section of a spherical Gaussian surface (GS). The spherical GS can be

placed inside or outside the spherical thin shell.

                            Figure 1

(a)