ElectroMagnetic InductionMedium
Question
A closely wound coil of 100 turns and area of cross section 1cm2 has a self inductance 1mH. The magnetic induction at the centre of the coil, when a current of 2A flows in it, will be :-
Options
A.0.2 
B.0.4
C.0.8
D.1
More ElectroMagnetic Induction Questions
A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing...A bar magnet is released from rest coaxially along the axis of a very long, vertical copper tube. After some time the ma...A constant current i maintained in a solenoid. Which of the following quantities will increase if an iron rod is inserte...A conducting loop is kept so that its centre lies at the origin of the coordinate system. A magnetic field has the induc...An inductor coil stores U energy when i current is passed through it and dissipates energy at the rate of P. The time co...