An induced current has no direction of its own. Explain, why?

When a sheet of metals is placed in magnetic field, which changes from zero to a maximum value, induced currents are set up in the direction shown in the diagram. What is the direction of the magnetic field?

The magnitude of electric current is from A towards B. If there is any induced current in the loop as shown in the figure, what will be its direction?

The tropical region has a large population of animals .Explain Why it is so.

The electron current in the direction from B to A is decreasing. What is the direction of induced current in the metallic loop kept above the wire as shown in the figure.

Current changes in time interval 5 s from 7 A to 2 A in a coil of self inductance 0.1 H. Find the value of induced e.m.f. and the direction of induced current in the coil.