The figures SAQ 13(a) shows a bar magnet M falling under gravity through an air cored coil. Plot a graph showing variation of induced e.m.f. with time(t). What does the area encloed by E-t curve depict?

Plot a graph showing variation of induced emf with the rate of change of current flowing through a inductor coil.

In the figure SAQ 12(a) a bar magnet moving towards the right or left induces an e.m.f. in the coils (1) and (2). Find, giving reason, the direction of induced currents through resistors AB and CD. When the magnet is moving towards the right.

A coil of metallic wire is stationary in non-uniform magnetic field. What is the e.m.f induced in the coil?

A cell of e.m.f. E an internal resistance r is connected across an external resistance R. Plot a graph showing the variation of P.D. across R, verses R.

A coil and a bar magnet move with the same velocity. What will be induced e.m.f. in the coil?

The figure SAQ 36 shows two identical rectangular loops (1) and (2) placed along with a straight long current carrying conductor between them. Will the e.m.f. induced in the two loops be equal?

A cylindrical bar magnet is kept along the axis of a circular coil and near it as shown in the figure. Will there by an y iduced e.m.f. at the terminal of the coil, when the magnet is rotated about an axis perpendicular to the length of the magnet?

The given figure SAQ 35 shows the positions of a loop PQR in a perpendicular uniform magnetic field. In which position of the coil there is an induced e.m.f.

Plot a graph showing the variation of current 'T' versus resistance 'R', connected to a cell of emf E and internal resistance 'r'.