Questions in emi

Select	Question
	A coil has 2000 turns and area of $70c{m^2}$. The magnetic field perpendicular to the plane of the coil is $0.3Wb/{m^2}$and takes $0.1 sec$ to rotate through ${180^o}$. The value of the induced e.m.f. will be
	Two different loops are concentric and lie in the same plane. The current in the outer loop is clockwise and increasing with time. The induced current in the inner loop then, is
	According to Faraday's law of electromagnetic induction
	The unit of magnetic flux is
	The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of the induced current in the conducting plane will be
	The magnetic field in a coil of 100 turns and 40 square cm area is increased from 1 Tesla to 6 Tesla in 2 second. The magnetic field is perpendicular to the coil. The e.m.f. generated in it is
	The dimensions of magnetic flux are
	Lenz's law gives
	The north pole of a bar magnet is moved swiftly downward towards a closed coil and then second time it is raised upwards slowly. The magnitude and direction of the induced currents in the two cases will be of... First case-Second case
	A metallic ring connected to a rod oscillates freely like a pendulum. If now a magnetic field is applied in horizontal direction so that the pendulum now swings through the field, the pendulum will