Question 4

Figure 3

shows the circular cross section (diameter =

2 m) of a solenoid, which has 100 turns per meter and carries a clockwise

current i

(a)   

Question 3 (cont.)

(b)   

Question 5

A circular loop (radius 0.1 m), which carries a counter-clockwise

current of 3 A, lies in the x-y plane, where the +z axis is pointing towards

you. There is uniform magnetic field

(a)   

Question 4 (cont.)

(b)   

Question 1 (cont.)

(b)   

Question 2

A long straight wire with a square cross section carries a

current of 3 A, which is distributed uniformly over the cross section. The side

length of the square cross section is 0.2 m. Suppose we place a square Amperian

loop (AL), with side length 0.1 m, entirely inside the wire, with the plane of

the square AL perpendicular to the wire. Calculate the net current

bounded/encircled by the AL.

Question 3

Figure 2

shows the circular orbit of an electron in a

uniform magnetic field of magnitude 0.2 Tesla. The orbit lies in the x-y plane,

where the +z axis is pointing towards you. The electron rotates clockwise in

the orbit with linear speed 2 m/s.

(a)   

Question 1

Figure 1

shows a circular Amperian loop (with radius

r = 0.5 m), which is centered on a current-carrying, infinitely-long thin straight

wire. The wire is perpendicular to the plane of the loop. At every point on the

loop, there is a magnetic field with magnitude B = 0.1 Tesla. 

(a)  

A planar loop, which carries a current, is in a uniform magnetic field. The field points into the page, perpendicular to the page. The magnitude of the torque on the loop is maximum for which of the following case?

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?