Question

A wire of length 10 meters carrying a current of .6 amps to the left lies along the x-axis from (-5, 0) to (5, 0) meters.

a) Find the Magnetic field created by this wire at (0, 8) meters.

b) Find the Magnetic field created by this wire at (10, 0) meters.

c) Find the Magnetic field created by this wire at (10, 8) meters.

Answer Should Be:

a) 7.95 nTeslas into the paper

b) 0 Teslas

c) 2.64 nTeslas into the paper

Answer 1

see the diagram :

For the shown arrangement, Magnetic field due to current carrying finite wire is .

Npw, the arrangement given in the problem is :

given :

i = 0.6 A.

r = 8 m.

a)at A

Magnetic field at A :

[answer]

b) at B , ;

magnetic field at B = 0 [answer]

c) at C :

.

Magnetic field at C is

[answer]