Consider a coil (of area A, resistance R and number of turns N) held perpendicular to a uniform magnetic field of strength B. The coil is now turned through `180^(@)` in time `Deltat`. What is
(i) Average induced emf
(ii) Average induced current
(iii) Total charge that flows through a given cross-section of the coil?

Suppose a coil of area 5m^(2) , resistance 10Omega and number of turns 200 held perpendicular to a uniform magnetic field of strengh 0.4 T. The coil is now turned through 180^(@) in time 1 s. What is (i) average induced emf (ii) average induced current (iii) total charge that flows through a given cross-setion of the coil?

A coil of area 500cm^(2) and having 1000 turns is held perpendicular to a uniform field of 0.4 gauss. The coil is turned through 180^(@) in 1//10sec . Calculate the average induced e.m.f.

A coil has an area of 0.05 m^(2) and it has 800 turns. It is placed perpendicular in a magnitude field of strength 4xx10^(-5)Wb//m^(2) , it is rotated through 90^(@) in 0.1 sec. the average e.m.f. induced in the coil is

A coil of area 500 cm^(2) having 1000 turns is put perpendicular to a magnetic field of intensity 4xx10^(-5) T. if it is rotated by 180^(@) in 0.1 s, the induced emf produced is

A coil of area 0.04 m^(2) having 1000 turns is suspended perpendicular to a magnetic field of 5.0 xx 10^(-5) Wb m^(2) . It is rotated through 90^(@) in 0.2 second. Calculate the average emf induced in it.

A rectangular coil of area 50cm^(2) and 100 turns is placed perpendicular to a magnetic field of 10^(-2)Wb//m^(2) . If the coil is withdrawn from the field in 40 ms, calculate the emf induced.

A rectangular coil of area A , having number of turns N is rotated at 'f' revoluation per second in a uniform magnetic field B , the field being perpendicular to the coil. Prove that maximum emf induced in the coil is 2pifNBA .

A coil of area 0.1m^(2) has 500 tums. After placing the coil in a magnetic field of strength 4xx10^(-4)Wb//m^(2) it is rotated through 90^(@) in 0.1 s. The average emf induced in the coil is

A flat coil, C , of n turns, area A and resistance R , is placed in a uniform magnetic field of magnitude B . The plane of the coil is initially perpendicular to B . The coil,is rotated by an angle theta about a diameter and charge of amount Q flows through it. Choose the correct alternatives.

A coil with an average diameter of 0.02 m is placed perpendicular to a magnetic field of 6000 T. If the induced e.m.f. is 11 V when magnetic field is changed to 1000 T in 4 s, what is the number of turns in the coil ?