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 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) ]

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 wire carrying a current 15A and of length 4*0cm is placed inside a solenoid near its centre making an angle of 60^@ with the axis of solenoid, where the magnitude of the magnetic field due to the solenoid is 0*30T . What is the force on the wire?

A very long solenoid of radius R is carrying current I(t)=kte^(-alphat) (kgt0), as a function of time (tge0) . Counter clockwise current is taken to be positive. A circular conducting coil of radius 2R is placed in the equatorial plane of the solenoid and concentric with the solenoid. the current induced inthe outer coil is correctly depicted, as function of time by :