A conducting rod of resistence r moves uniformely with a constant speed v. If the rod keeps moving uniformly, then the amount of force required is -

A conducting rod of resistance r moves uniformly with a constant speed v in a uniform magnetic field. If the rod keeps moving uniformly, then the amount of force required is

A conducting rod of resistance r moves uniformly with a constant speed v in a uniform magnetic field. If the rod keeps moving uniformly, then the amount of force required is

In the figure shown as uniform magnetic field |B|=0.5T is perpendicular to the plane of circuit. The sliding rod of length l=0.25 m moves uniformly with constant speed v=4ms^-1 . If the resistance of the sllides is 2Omega , then the current flowing through the sliding rod is

In the figure shown as uniform magnetic field |B|=0.5T is perpendicular to the plane of circuit. The sliding rod of length l=0.25 m moves uniformly with constant speed v=4ms^-1 . If the resistance of the sllides is 2Omega , then the current flowing through the sliding rod is

A wire is bent in the form of a V shape and placed in a horizontal plane.There exists a uniform magnetic field B perpendicular to the plane of the wire. A uniform conducting rod starts sliding over the V shaped wire with a constant speed v as shown in the figure. If the wire no resistance, the current in rod wil

A wire is bent in the form of a V shape and placed in a horizontal plane.There exists a uniform magnetic field B perpendicular to the plane of the wire. A uniform conducting rod starts sliding over the V shaped wire with a constant speed v as shown in the figure. If the wire no resistance, the current in rod wil

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __ A. Then the end X of the rod become positively charged B. The end Y of the rod become positively charged C. The entire rod is unevenly charged D. The rod become hot due to joule heating

A conducting rod of length I and velocity v moves in a magnetic field B. If rho is the resistivity of the material of rod, then the induced current produced in the rod is _____

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __