Test Index

JEE Main Physics Class 12 Magnetism and Matter Questions

© examsnet.com

Question : 63

Total: 80

The coercivity of a small magnet where the ferromagnet gets demagnetized is 3×103Am−1 . ´ The current required to be passed in a solenoid of length 10 cm and number of turns 100, so that the magnet gets demagnetized when inside the solenoid, is:

30 mA
60 mA
3 A
6 A

Go to Question:

Prev Question

Next Question