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 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:

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:

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 :

A solenoid of radius R and length L has a current I = I​_0 cosωt. The value of induced electric field at a distance of r outside the solenoid, is