The drawing shows a thin, uniform rod that has a length of 0.45 m and a mass of 0.09 kg. This rod lies in the plane of the paper and is attached to the floor by a hinge at point P. A uniform magnetic field of 0.36 T is directed perpendicularly into the plane of the paper. There is a current | = 4.0 A in the rod, and rod does not rotate clockwise or counterclockwise. Find the angle.

A conducting rod AC of length 4l is rotated about point O in a uniform magnetic field vec(B) directed into the plane of the paper. AO = l and OC = 3l . Find V_(A) - V_(C) .

A silver cylindrical rod has a length of 0.5 m and radius of 0.4 m, find the density of the rod, if its mass is 2640 kg.

A conducting rod AB of length l is rotated about point O with an angular velocity velocity omega in a uniform magnetic field (B_0) directed perpendicular into the plane of rotation as shown in the figure. The value of V_B - V_A is

A conducting rod AC of length 4l is rotate about a point O in a uniform magnetic field vecB directed into the paper. AO=l and OC=3l . Then

A rod PQ is connected to the capacitor plates. The rod is placed in a magnetic field (B) directed downwards perpendicular to the plane of the paper. If the rod is pulled out of magnetic field with velocity vec(v) as shown in Figure.

A uniform rod of length L and mass M is hinged at its upper point and is at rest at that moment in the vertical plane.A current i flows in it.A uniform magnetic field of strength B exists perpendicular to the rod and in horizontal direction. The force exerted by the hinge on the rod just after release in horizontal direction is (iLB)/N .Then find the value of N .

A thin, uniform rod with negligible mass and length 0.200m is attached to the floor by a frictionless hinge at point P (as shown in fig) A horizontal spring with force constant k=4.80Nm^-1 connects the other end of the rod to a vertical wall. The rod to a vertical wall. The rod is in a uniform magnetic field B=0.340T directed into the plane of the figure. There is current I=6.50 A in the rod, in the direction shown. When the rod is in equilibrium and makes an angle of 53.0^@ with the floor, is the spring stretched or compressed?

A thin, uniform rod with negligible mass and length 0.200m is attached to the floor by a frictionless hinge at point P (as shown in fig) A horizontal spring with force constant k=4.80Nm^-1 connects the other end of the rod to a vertical wall. The rod to a vertical wall. The rod is in a uniform magnetic field B=0.340T directed into the plane of the figure. There is current I=6.50 A in the rod, in the direction shown. Calculate the torque due to the magnetic force on the rod, for an axis at P.

A thin, uniform rod with negligible mass and length 0.200m is attached to the floor by a frictionless hinge at point P (as shown in fig) A horizontal spring with force constant k=4.80Nm^-1 connects the other end of the rod to a vertical wall.The rod is in a uniform magnetic field B=0.340T directed into the plane of the figure. There is current I=6.50 A in the rod, in the direction shown. When the rod is in equilibrium and makes an angle of 53.0^@ with the floor, is the spring stretched or compressed?

A uniform rod of mass m is bent into the form of a semicircle of radius R. The moment of inertia of the rod about an axis passing through A and perpendicular to the plane of the paper is