A long straight circular conductor placed in air is carrying a current of 250 A. Find the magnetizing force at a distance of 5 cm from the conductor.
A long straight circular conductor placed in air is carrying a current of 250 A. Find the magnetizing force at a distance of 5 cm from the conductor.
Right Answer is:
2500/π µ AT/m
SOLUTION
Given:
r = 5 cm = 5 × 10-2 m
I = 250 A
Magnetizing field strength (H) is given by
H = I/2πr AT/m
Where
H = Magnetizing force (AT/m)
I = Current flowing in a conductor (A)
r = Distance between current-carrying conductor and the point (m)
H = 250/2π × 5 × 10-2 m
H = 2500/π µ AT/m