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प्रश्न
Devices which is used to convert high alternating current to low alternating current is ______.
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उत्तर
Devices which is used to convert high alternating current to low alternating current is Step down transformer
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संबंधित प्रश्न
A power transmission line feeds input power at 2200 V to a step-down transformer with its primary windings having 300 turns. Find the number of turns in the secondary to get the power output at 220 V.
What type of current is transmitted from the power station?
How is the e.m.f. across primary and secondary coils of a transformer related with the number of turns of the coil in them?
State two ways through which the strength of an electromagnet can be increased.
Why is the core of a transformer made of soft iron?
Draw a labelled diagram to show the various parts of a step-up transformer and step down transformer.
State whether true or false. If false, correct the statement.
A transformer can step up direct current.
A power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?
Explain why core of a transformer is always laminated.
