A copper rod `1.5m` long is rotated in a magnetic field of induction `6 xx 10^-5 (Wb)/m^2`.If it performs 1200 r.p.m.. find the e.m.f induced at its ends.

A metal rod of length 1 m is rotated about one of its endsin a plane at right anglesto a uniform magnetic field of induction 2.5 xx 10^-3Wb//m^2 . If it makes 1800 r.p.m. calculate the induced emf between it.

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 .

A coil having 50 turns and an area of 800cm^2 is held with its plane perpendicular to uniform magnetic field of induction 5 xx 10^-5 Wb/m^2 .If it is pulled out of the field in 2 second ,then the e.m.f.induced in the coil will be

A conductor of length 0.3 m moves with a uniform velocity of 10 m//s at right angles to the magnetic field of induction 0.5 xx 10^-4 Wb//m^2 . Calculate the e.m.f. induced in it.

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 rod of length l is rotated about its one end, perpendicular to a magnetic field of induction B What is the e.m.f induced in the rod

A coil of 2000 turns and of mean radius 5 cm, makes 300 revolutions per minute around one of its diameters in a uniform magnetic field of induction 2.5 xx 10^-5 Wb/m^2 at right angles to its axis of rotation .Calculate the maximum e.m.f. induced in the coil and also its r.m.s. value.

The maximum force acting on a straight conductor of length 15 cm, placed in a magnetic field of induction 5 xx 10^(-5) N//A m is 3 xx 10^(-4) N then the current flowing in conductor is

A force of 1.732 xx 10^(-2) N acts on a particleof charge q moving with a velocity 1//1000^(th) of the velocity of light in a magnetic field of induction 2/sqrt(3) xx 10^(-5) Wb//m^(2) and perpendicular to the field then q is

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.