A solenoid has 2000 turns wound over a length of 0 3 m The

Last updated: 6/12/2023

A solenoid has 2000 turns wound over a length of 0 3 m The area of its cross section is 1 2 10 m Around its central section a coil of 300 turns is wound If an initial current of 2 A in the solenoid is reversed in 0 25 s then the magnitude of emf induced in the coil is equal to O 6 10 4 V 4 8 x 10 V O 6 10 V