Two particles, each of mass m and charge q , are attached to the ends of a light rigid rod of length 2R. The rod is rotated at constant angular speed about a perpendicular axis passing through its center. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the center of the rod is
a current I flows along the length of an infinitely long, straight, thin-walled pipe. Then
1 Crore+ students have signed up on EduRev. Have you? Download the App |
A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. One of the arcs AB of the ring subtends an angle θ at the center . The value of the magnetic induction at the center due to the current in the ring is
Two particles X and Y having equal charges, after being accelerated through the same potential difference, enter a region of uniform magnetic field and describe circular paths of radii R1 and R2 respectively. The ratio of the mass of X to that of Y is
A proton, a deutron and an α-particle having the same kinetic energy are moving in a circular trajectories in a constant magnetic field. If rp , rd and rα denote, respectively the radii of the trajectories of these particles, then