Solve problem `15` if the length of rod is `2L` and resistance `2r` and it is rotating about its center. Both ends of the rod now touch the conducting ring.

Solve the above question if the length of rod is 2L and resistance 2r and it is rotating about its centre.Both ends of the rod now touch the conductiing ring

Solve the above question if the length of rod is 2L and resistance 2r and it is rotating about its centre.Both ends of the rod now touch the conductiing ring

A rod of length L and resistance r rotates about one end as shown in . Its other end touches a conducting ring of negligible resistence. A resistence R is connected between the center and periphery. Draw the electrical equivalence and find the current in resistance R . There is a uniform magnetic field B directed as shown in .

A rod of length L and resistance r rotates about one end as shown in . Its other end touches a conducting ring of negligible resistence. A resistence R is connected between the center and periphery. Draw the electrical equivalence and find the current in resistance R . There is a uniform magnetic field B directed as shown in .

A rod of length L and resistance r rotates about one end as shown in . Its other end touches a conducting ring of negligible resistence. A resistence R is connected between the center and periphery. Draw the electrical equivalence and find the current in resistance R . There is a uniform magnetic field B directed as shown in .

A cylindrical copper rod has length L and resistance R. If it is melted and formed into another rod of length 2L, the resistance will be

A rod of length l and resistance r rotates about one end as shown in figure.Its othr end touches a conducting ring a of negligible resistance. A resistance R is connected between centre and periphery.Draw the electrical equivalence and find the current in the resistance R .There is a uniform magnetic field B directed as shown.

A rod of length l and resistance r rotates about one end as shown in figure.Its othr end touches a conducting ring a of negligible resistance. A resistance R is connected between centre and periphery.Draw the electrical equivalence and find the current in the resistance R .There is a uniform magnetic field B directed as shown.

In the figure there are two identical conducting rods each of length a rotating with angular speed omega is the direction shown.One end of each rod touches a conducting ring.Magnetic field B exists perpendicular to the plane of the rings.The rods the conducting rings and the lead wires and resistanceless.Find the magnitude and direction of current in the resistance R .

In the figure there are two identical conducting rods each of length a rotating with angular speed omega is the direction shown.One end of each rod touches a conducting ring.Magnetic field B exists perpendicular to the plane of the rings.The rods the conducting rings and the lead wires and resistanceless.Find the magnitude and direction of current in the resistance R .