ElectroMagnetic InductionHard
Question
The coercivity of a bar magnet is 100A/m. It is to be demagnetised by placing it inside a solenoid of length 100 cm and number of turns 50. The current flowing the solenoid will be :-
Options
A.4A
B.2A
C.1A
D.zero
More ElectroMagnetic Induction Questions
If the magnetic susceptibility of a magnetic material is − 0.004 then its nature will be :-...A capacitor C is first charged fully with potential difference of $V_{0}$ and disconnected from the battery. The charged...solenoid is at potential difference of 60 volt. If the current flowing through it is 15 amp. Then the resistance of the ...Consider the situation shown in the figure. The wire AB is slide over two parallel rails with a constant velocity. If th...A coil of wire having finite inductance and resistance has conducting ring placed co-axially with in it. The coil is con...