| Q.75 | A solenoid has a core of a material with relative permeability 400. The windings of the solenoid are insulated from the core and carry a current of 2 A. If the number of turns is 1000 per metre, calculate field H. | |
| Ans | 1. ![]() | |
2. ![]() | ||
3. ![]() | ||
4. ![]() |
Correct Ans Provided: 3



