The turns ratio of a transformer is 12.5. If its primary is connected with a.c. mains of 220 V, determine the voltage obtained across the secondary.

The ratio of the number of turns in primary and secondary coil of a step up transformer is 1:200. It is connected to a.c. mains of 220 volt. Calcualte the voltage developed in the secondary. Determine the maximum current in secondary coil, when a current of ampere flows through the primary.

The ratio of the number of turns in the primary and the secondary coils of a step down transformer is 1:200 . It is connected to a.c. mains of 200 V. Calculate the voltage developed in the secondary. Determine the value of maximum current in the secondary, when a current of 2.0 A flows through the primary.

Transformation ratio of one transformer is 1:2. If Leclanche cell having emf 1.5 V is connected to primary coil of a transformer then voltage obtained across its secondary is ………..

A transformer has 100 turns in the primary and 500 turns in the secondary. If the primary is connected to 220V DC supply, then the voltage develop across the secondary will be

A transformer has 50 turns in the primary and 100 in the secondary. If the primary is connected to a 220 V DC supply, what will be the voltage across the secondary?

A transformer has 50 turns in the primary and 100 in the secondary. If the primary is connected to a 220 V DC supply, what will be the voltage across the secondary?