Magnetic field changes at the rate of `0.4 T //sec` . In a squre coil of side 4 cm . Kept prependicular to the field. If the resistance of the coil is `2xx10^(-3) Omega` , then induced current in coil is :-

A coil containing 20 turns of average diameter 0.02 m is placed perpendicular to a magnetic field of intensity 1.6 xx 10^4 T . The magnetic field changes to 1.8 xx 10^3 T in 4 s. A resistor of resistance 15 ohm is connected in sereis with the coil. If the resistance of the coil is 5 ohm, find the induced current passing through the resistor.

A conducting wire is bent in the form of a square of side 8 cm and is placed in a region of magnetic field of 0.05 T, such that the plane of coil is perpendicular to the magnetic field. If the side of square starts decreasing at a rate of 10^(-3) m s^(-1) , what will be the emf induced in the coil when the area of coil is reduced to just half?

In a coil of area 10cm^(2) and 10 turns, magnetic field is directed perpendicular to the plane and is changing at a rate of 10^(4)Ts^(-1) . The resistance of the coil is 20Omega . The current in the coil will be

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A rectangular coil of 20 turns and area of cross-section 25 cm^(2) has a resistance of 100 ohm . If a magnetic field which is perpendicular to the plane of the coil changes at the rate of 1000 telsa per second, the current in the coil is