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प्रश्न
The input and output voltage of a transformer are 220 V and 44 V respectively. Find: the turns ratio.
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उत्तर
We know that
`"E"_"p"/"E"_"s" = "N"_"p" / "N"_"s"`
So turns ratio
`"N"_"s" / "N"_"p" = 44/ 220`
= 1.5
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संबंधित प्रश्न
How much current is drawn by the primary of a transformer connected to 220 V supply when it delivers power to a 110 V − 550 W refrigerator?
How are the e.m.f in the primary and secondary coils of a transformer related with the number of turns in these coils?
Why is the iron core of a transformer made laminated (thin sheets) instead of being in one solid piece?
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?
What is a transformer? On what principle does it work?
Name the principle on which functioning of a transformer depends.
The self-inductance of a closely wound coil of 200 turns is 10 mH. Determine the value of magnetic flux through the cross-section of the coil when the current passing through the coil is 4 mA.
Explain why core of a transformer is always laminated.
