Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance `1Omega//m`. Position of the conducting rod at `t=0` is shown. A time dependent magnetic field `B=2t` tesla is switched on at `t=0`

The current in the loop at `t=0` due to induced emf is

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 The magnitude of the force required to move the conducting rod at constant speed 5cm/s at the same instant t=2s , is equal to

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 The magnitude of the force required to move the conducting rod at constant speed 5cm/s at the same instant t=2s , is equal to

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 At t=0 , when the magnetic field is switched on, the conducting rod is moved to the left at constant speed 5cm//s by some external means. At t=2s , net induced emf has magnitude

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 At t=0 , when the magnetic field is switched on, the conducting rod is moved to the left at constant speed 5cm//s by some external means. At t=2s , net induced emf has magnitude

Figure shows a conducting rod of negligible resistance that can slide on smooth U -shaped rail made of wire of resistance 1Omega//m .Position of the conducting rod at t=0 is shown.A time t dependent magnetic field B=2t Tesla is switched on at t=0 . Following situation of the previous question, the magnitude of the force required to move the conducting rod at constant speed 5cm//s at the same instant t=2s , is equal to

A conducting circular loop of radius a and resistance R is kept on a horizontal plane. A vertical time varying magnetic field B=2t is switched on at time t=0. Then

A conducting circular loop of raidus and resistance R is kept on a horiozntel plane. A vertical time varing magnetic field B=2t is switched on at time t=0. Then

A conducting rod PQ of length 20 cm and resistance 0.1 Omega rests on two smooth parallel rqails of negligible resistance AA' and CC'. It can slide on the rails and the arrangement is positioned betwaeen the poles of a permanent magnet producing unifrom magnetic field B=0.4 T. The rails, the rod and the magneitc field are in the three mutually perpendicular directions as shown in the figure. if hte ends A and C of the rails are short cicuited, find the External force required to move the rod with uniform velocity v=10cm/s.