has the same primary voltage and secondary voltage.

has the same primary current and secondary current.

has a lower primary voltage than secondary voltage.

has a higher primary voltage than secondary voltage.

has a higher secondary current than primary current.

positive transformer.

step-up transformer.

a step-down transformer.

an efficient transformer.

0.08 A.

0.05 A.

0.02 A.

8 A.

0.01 A.

as long as change in flux

for a long time

forever

for a short time

conservation of momentum

conservation of energy

conservation of charge

conservation of mass

electromagnetic difference

current induced in a circuit

potential difference

flow of power in fuse

There in no change in the induced emf.

The induced emf is 4 times as much.

The induced emf is half as much.

The induced emf is 2 times as much.

Electromagnetic friction

Electromagnetic field

Electromotive force

Electromagnetic force