The primary and secondary coils of a transformer do not have any electrical contact. How is then electrical energy transferred from primary to secondary ?

The number of turns in primary and secondary coils of a transformer is 50 and 200 respectively .If the current in the primary coil is 4 A then the current in the secondary coil is

The number of turns in primary and secondary coils of a transformer is 50 and 200, respectively. If the current in the primary coil is 4 A, then current in the secondary coil is

What is an electric cell ? What is a primary and a secondary cell ?

The number of turns in primary and secondary coil of transformer are 1000 to 5000 and 90 V ac is applied to primary, hence the voltage at the secondary is

How is the e.m.f. across primary and secondary coils of a transformer related with the number of turns of coil in them?

the number of turns in primary and secondary coils of a transformer are 100 and 20 respectively. If an alternating potential of 200 volt is applied to the primary, the induced potential in secondary will be