engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Electrician and Wireman Electromagnetism
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.
1
2 × 103 A/m
2
5 × 10-3 A/m
3
2 × 10-3 A/m
4
5 × 103 A/m