A long solenoid of radius R carries a time dependent current `I = I_(0) t(1 – t)`. A ring of radius 2R is placed coaxially near its centre. During the time interval`0 le t le 1`, the induced current `I_(R)` and the induced emf VR in the ring vary as:

long solenoid of radius R carries a time –dependent current I(t) = I_(0) (12t - t^(3)) . A ring of radius 2R is placed coaxially near its middle. During the time interval 0 le t le 2 sqrt(3) , the induced current (I_(R)) and the induced EMF (V_(R)) in the ring change as :

long solenoid of radius R carries a time –dependent current I(t) = I_(0) (12t - t^(3)) . A ring of radius 2R is placed coaxially near its middle. During the time interval 0 le t le 2 sqrt(3) , the induced current (I_(R)) and the induced EMF (V_(R)) in the ring change as :

A long solenoid of radius R carries a time (t)-dependent current I(t)= I_(0)t^(2) (1-t) . A conducting ring of radius 3R is placed co-axially near its middle. During the time interva 0 le t le 1 , the induced current (I_(R )) in the ring varies as: [Take resistance of ring to be R_(0) ]

A long solenoid of radius R carries a time (t)-dependent current I(t)= I_(0)t^(2) (1-t) . A conducting ring of radius 3R is placed co-axially near its middle. During the time interva 0 le t le 1 , the induced current (I_(R )) in the ring varies as: [Take resistance of ring to be R_(0) ]

A long solenoid of radius R carries a time (t) – dependent current I=I_(0)(t-2t^(2)) A circular ring of radius = R is placed near the centre of the solenoid and plane of ring makes an angle 30^(@) with the axis of solenoid. The time at which magnetic flux through the ring is maximum is :

A long solenoid of radius R carries a time (t) – dependent current I=I_(0)(t-2t^(2)) A circular ring of radius = R is placed near the centre of the solenoid and plane of ring makes an angle 30^(@) with the axis of solenoid. The time at which magnetic flux through the ring is maximum is :

A long solenoid of radius R carries a time (t) – dependent current I=I_(0)(t-2t^(2)) A circular ring of radius = R is placed near the centre of the solenoid and plane of ring makes an angle 30^(@) with the axis of solenoid. The time at which magnetic flux through the ring is maximum is :

The current in a long solenoid of radius R and having n turns per unit length is given by i= i_0 sin omega t . A coil having N turns is wound around it near the centre. Find (a) the induced emf in the coil and (b) the mutual inductance between the solenoid and the coil.

The current in a long solenoid of radius R and having n turns per unit length is given by i= i_0 sin omega t . A coil having N turns is wound around it near the centre. Find (a) the induced emf in the coil and (b) the mutual inductance between the solenoid and the coil.