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 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 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 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

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

A metallic rod completes its circuit as shown in the figure. The circuit is normal to a magnetic field of B=0.15 tesla. If the resistances of the rod is 3Omega the force required to move the rod with a constant velocity of 2m//sec is-

The figure shows a metal rod (PQ), which makes contact and complete the circuit. The circuit is perpendicular to the magnetic field with B=1 T. If the resistance is 2 Omega , then force required to move the rod and indicated with a constant speed of 2m/s is