Question

the intensity of a magnetic field in the neighbourhood of a straight conductor carrying current is
a): directly proportional to the distance of the conductor
b):inversely proportional to the distance from the conductor
c):is same at all distance from the conductor
d): inversely proportional to the square of the distance from conductor​

Answer 1

Answer:

b

Explanation:

magnetic field intensity is given by B= u•i/(2πr)