Question 5 (cont.)

(b)   

Question 3 (cont.)

(b)   

Question 4 (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

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 1 (cont.)

(b)   

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 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 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?