A step down transformer of efficiency `80%` is used on a 1000V line to deliver a current of 20 A at 120 V at the secondary coil. What is the current drawn from the line?

A step down transformer of efficiency 80% is used on a 1000V line to deliver a current of 20A at 120V at the secondary coil. What is the current drawn from the line?

A step-down transformer is used on a 1000 V line to deliver 20A at 120V at the secondary coil. If the efficiency of the transformer is 80% the current drawn from the line is.

A step-down transformer is used on a 1000 V line to deliver 20A at 120V at the secondary coil. If the efficiency of the transformer is 80% the current drawn from the line is.

A step-down transformer is used at 220 volt line to provided a current of 0.5 ampere to a 15 watt bulb. If the secondary has 20 turns, find the current and number of turns in the primary coil.

A step up transformer operates on a 230 V line and a load current of 2 ampere. The ratio of the primary and secondary windings is 1 : 25 . What is the current in the primary?

A step up transformer operates on a 230 V line and a load current of 2 ampere. The ratio of the primary and secondary windings is 1 : 25 . What is the current in the primary?

A step up transformer operates on a 230 V line and a load current of 2 ampere. The ratio of the primary and secondary windings is 1:25. What is the current in the primary ?