railway RRB JE (CBT I + CBT II) Mock Test 2024 Network Theory Magnetic Coupling Circuits

Determine the current (in A) through a 60 cm long solenoid when the solenoid has 400 turns and the value of magnetic field at the centre of the solenoid is 6 mT.

1
4.4
2
5.6
3
7.2
4
8.4
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