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प्रश्न
A transformer converts 240 V AC to 60 V AC. The secondary has 75 turns. The number of turns in primary are _______.
(A) 600
(B) 500
(C) 400
(D) 300
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उत्तर
∴ `N_p` = 300
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संबंधित प्रश्न
State the principle on which transformer works.
Explain the construction and working of the transformer.
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The transformer is used in ______ current circuits.
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Name the principle on which functioning of a transformer depends.
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What is Transformer?
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Long distance power transmissions
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Which of the following statement is true?
Read the following paragraph and answer the question:
Long distance power transmissions
The large-scale transmission and distribution of electrical energy over long distances is done with the use of transformers. The voltage output of the generator is stepped up. It is then transmitted over long distances to an area sub-station near the consumers. There the voltage is stepped down. It is further stepped down at distributing sub-stations and utility poles before a power supply of 240 V reaches our homes.
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The primary coil of a transformer has 60 turns whereas its secondary coil has 3000 turns.
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