Advertisements
Advertisements
प्रश्न
For what purpose are the transformers used? Can they be used with a direct current source?
Advertisements
उत्तर
The purpose of the transformer is to step up or step down the a.c. voltage.
No, a transformer cannot be used with a direct current source.
संबंधित प्रश्न
Name the transformer used in the power transmitting station of a power plant.
Name two kind of energy loss in a transformer. How is it minimized?
Draw a labeled diagram of a full wave rectifier circuit. State its working principle. Show the input-output waveforms ?
In an ideal transformer, an output of 66 kV is required when an input voltage of 220 V is available. If the primary has 300 turns, how many turns should the secondary have?
Name the principle on which functioning of a transformer depends.
Devices which is used to convert high alternating current to low alternating current is ______.
Give the advantage of AC in long distance power transmission with an illustration.
A step-down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?
A transformer operating at primary voltage 8 kV and secondary voltage 160 V serves a load of 80 kW. Assuming the transformer to be ideal with purely resistive load and working on unity power factor, the loads in the primary and secondary circuit would be:
