Comedk
Moving Charges And Magnetism
COMEDK 2021
MCQ+1 / -02021
A long solenoid has 20 turns cm\(^{-1}\). The current necessary to produce a magnetic field of 20 mT inside the solenoid is approximately
Comedk
COMEDK 2021
A long solenoid has 20 turns cm\(^{-1}\). The current necessary to produce a magnetic field of 20 mT inside the solenoid is approximately