A square loop of side `22cm` is converted into circular loop in `0.4s`. A uniform magnetic field of `0.2T`directed normal to the loop, then the induced in the loop is

A rectangular loop sides 10 cm and 3 cm moving out of a region of uniform magnetic field of 0.5T directed normal to the loop. If we want to move loop with a constant velocity 1 cm//sec . Then required mechanical force is (Resistance of loop = 1mOmega ):-

A rectangular loop of sides 6 cm 2 cm with a samll cut is moving out of a region of uniform magnetic field of magnitude 0.4 T direction normal to the loop. The voltage developed acrss the cut if velocity of loop is 2cm^(-1) in a direction normal to the longer side is

A rectangular loop of sides 6 cm 2 cm with a samll cut is moving out of a region of uniform magnetic field of magnitude 0.4 T direction normal to the loop. The voltage developed acrss the cut if velocity of loop is 2cms^(-1) in a direction normal to the longer side is

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is 1 m. s^(-1) in a direction normal to the longer side

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the mef developed across the cut if the velocity of the loop is 1 m. s^(-1) in a direction normal to the Suppose in this case the loop is stationary but the current feeding the electromagnet produces the magnetic field is gradually reduced so that the field decreases from its initial value of 0.3 T at the rate of 0.02 T. s^(-1) . If the cut is joined and the loop has a resistance of 1.6 Omega , how much power is dissipated by the loop as heat? What is the source of this power?

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is 1 "cm s"^(-1) in a direction normal to the (a) longer side, (b) shorter side of the loop ? For how long does the induced voltage last in each case ?