Lenz's law is a consequence of the conservation of:

Which law states that induced EMF is proportional to the rate of change of magnetic flux?

A transformer works on the principle of:

The phenomenon of generating an electromotive force due to a changing magnetic field is called:

The device that converts mechanical energy into electrical energy is called a:

A device used to store electric charge is called a:

The device that converts electrical energy into mechanical energy is called a:

The formula for electric power in terms of voltage and current is:

Like charges:

The SI unit of electric power is:

Unlike charges: