Consider the following statements-
(a) An emf can be induced by moving a conductor in a magnetic field.
(b) An emf can be induced by changing the magnetic field.
A metallic ring is held horizontal and a magnet is allowed to fall vertically through it with N-pole pointing upwards. The acceleration of magnet near the ring is a. Then-
A conducting rod AB of length = 1 m is moving at a velocity v = 4 m/s making an angle 30º with its length. A uniform magnetic field B = 2T exists in a direction perpendicular to the plane of motion. Then-
A square coil ACDE with its plane vertical is released from rest in a horizontal uniform magnetic field B of length 2L. The acceleration of the coil is-
Consider the situation shown in figure . If the current in the long straight wire xy is increased at a steady rate the induced current in loop A and B will be -
Two circular coils A and B are facing each other as shown in figure. The current 'i' through A can be altered-
Two identical coaxial circular loops carry a current i each circulating in the same direction. If the loops approach each other-
Some magnetic flux is changed from a coil of resistance 10 ohm. As a result an induced current is developed in it, which varies with time as shown in figure. The magnitude of change in flux through the coil in Webers is-
Consider the situation shown in figure. If the switch is closed and after sometime it is opened again, the closed loop will show-
Consider the situation shown in figure. The wire AB is slid on the fixed rails with constant velocity v. If the wire AB is replaced by a semicircular wire, the magnitude of the induced current will-
