A wire shaped as a semicircle of radius a, is rotating about an acis PQ with a constant angular velocity `omega = 1/sqrt(LC)`, with the help of an external agent. A uniform magnetic field B exists in space and is directed into the plane of the figure. (circuit part remains at rest) (left part is at rest)

A non-conducting disk of radius R is rotating about its own axis with constant angular velocity omega in a perpendicular uniform magnetic field B as shown in figure. The emf induced between centre and rim of disk is

When a 'j' shaped conducting rod is rotating in its own plane with constant angular velocity omega about one of its ends P in a uniform magnetic field rarr B ( directed normally into the plane of paper ) the magnitude of emf induced across it will be

When a 'j' shaped conducting rod is rotating in its own plane with constant angular velocity omega about one of its ends P in a uniform magnetic field rarr B ( directed normally into the plane of paper ) the magnitude of emf induced across it will be

In the figure shown a T-shaped conductor moves with constant angular velocity omega in a plane perpendicular to uniform magnetic field B. The potential difference V_A-V_B is

In the figure shown a T-shaped conductor moves with constant angular velocity omega in a plane perpendicular to uniform magnetic field B. The potential difference V_A-V_B is

A conducting ring of radius 'r' is rolling without slipping with a constant angular velocity omega (figure). If the magnetic field strengh is B and is directed into the page the emf induced across PQ is

A conducting ring of radius 'r' is rolling without slipping with a constant angular velocity omega (figure). If the magnetic field strengh is B and is directed into the page the emf induced across PQ is

A copper wire bent in the shape of a semicircle of radius r translates in its plane with a constant velocity v. A uniform magnetic field B exists in the direction perpendicular to the plane of the wire. Find the emf induced between the ends of the wire if (a) the velocity is perpendicular ot the diameter joining free ends, (b) the velocity is parallel to this diameter.