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 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 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 is used to reduce 220V supply to 11V. The primary draws 5 A of current, while th secondary 90 A. The efficiency of the transformer is

A transformer is used to illuminate a bulvb (36 watt and 12v)_ with the help of 220V mains. If the efficiency of the transformer is 75%, then calculate the current in the primary coil.

A 220 V input is supplied to a transformer. The output circuit draws a current of 2.0 A at 440 V . If the efficiency of the transformer is 80% , the current drawn by the primery winding of the transformer is

A 220 V input is supplied to a transformer. The output circuit draws a current of 2.0 A at 440 V. If the efficiency of the transformer is 80%, the current drawn by the primery winding of the transformer is