Name the various methods to produce induced e.m.f.

What is induced e.m.f.?

The phenomenon of producing an induced e.m.f. in a conductor due to the changing magnetic flux is

Answer the following : Explain the various methods for extinguish fires .

Answer the following : Describe the various methods for extinguishing fires .

A metal rod 1/ sqrt(pi) meter long rotates about one of its ends in a plane perpendicular to a uniform magnetic induction 5 xx 10^-3 (Wb)/m^2 . Calculate the number of revolutions the rod makes per minute if the induced e.m.f. across it is 15 millivolt.

What is the basic cause of induced e.m.f.?

Describe the various methods of birth control to avoid pregnancy.

Why are various waste products produced in the body of an organism?

Describe various methods of fish preservation.

Name the device used for measuring the e.m.f. of a cell.