A coil of effective area `10m^2` is placed at right angles to a magnetic field of induction 0.05 T. Find the induced emf in the coil if just the magnitude of the field is changed to 0.03T in 0.2s.

A coil of effective area 2m^2 is placed at right angles to a magnetic field of induction 0.08 Wb//m^2 . Find the e.m.f. induced in it if the field reduces to ten percent of its original value in 0.6s

A coil of effective area 4m^2 is placed at right angles to a magnetic field of induction 0.05Wb//m^2 . If the field is decreased to 20% of its original value in10 seconds, find the e.m.f. induced in the coil.

A charged particle moves with a velocity 3 xx 10^6 m//s at right angles to a uniform magnetic field of induction 0.005T. Find the magnitude of the charge if the particle experience a force of 2 xx 10^-2N .

A metal rod of length lm, rotates about its one end in a plane at right angles to a horizontal magnetic field of induction 7/22xx10^-4T If the frequency of rotation is 10Hz, then the magnitude of induced emf is

A circular coil of diameter 10 cm is placed in a magnetic field of induction 2 xx 10^(-4)T . The magnitude of flux linked with coil when the plane of coil makes an angle 45^@ with the field is

A coil of dimensions 30 cm xx 20 cm is kept such that its plane is at right angles to the direction of uniform magnetic field of value 0.08 Wb/m^2 . Calculate the e.m.f . induced in the coil, If the value of field is reduced to 25 percent of the original value in 0.6 second.

The conductor moving with uniform velocity of 10 m//s at right angles to the magnetic field of induction 0.4 xx 10^-4 Wb//m^2 . Calculate length of the conductor if the e.m.f. induced at the ends of conductor is 6 xx 10^-5V .

Find the change in magnetic flux associated with the coil in 15 seconds, if the induced e.m.f. in the coil is 2 xx 10^-3V .

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A charged particle moves with velocity of 3 xx 10^6 m//s at right angle to a uniform field of magnetic field 0.005 T. Find the value of the charge on the particle if it experience a force of 2 xx 10^-2 N .