A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2.m, 100 turns, and carrying a current of 5.2A. The coercivity of the bar magnet is:
a. |
1200A\m |
b. |
2600A/m |
c. |
520A/jm |
d. |
285A/m |
A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2.m, 100 turns, and carrying a current of 5.2A. The coercivity of the bar magnet is:
a. |
1200A\m |
b. |
2600A/m |
c. |
520A/jm |
d. |
285A/m |