Question

Explain the following with reference to the magnetic field around a straight
conductor carrying current.
(i) Tracing the pattern of magnetic field
(ii) increasing the intensity of magnetic field
(iii) Reversing the direction of electric current.​

Answer 1

i) the pattern of magnetic field will have these attributes

1) crowded in the ends

2) no lines will intersect

3) the magnetic field lines will start from North Pole and end in South pole.

4) inside the conductor the magnetic field lines flow from south to North .

ii) increasing the intensity of magnetic field increases the distance of influence of magnetic effect and also the magnitude of attraction.

iii) reversing direction of elctric current , reverses the direction of magnetic field lines , the nearest end to flow of current is south pole and farthest end is North pole .

hav a nice day

Answer 2

a)tracing the pattern of magnetic field

b) increasing the intensity of magnetic field

c) reversing the direction of the electric current