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प्रश्न
Which coil of a step up transformer is made thicker and why?
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उत्तर
In a step-up transformer, the primary coil is made of thicker wire.
This is because in a step-up transformer the number of turns in the secondary coil is more than the number of turns in the primary coil.
As `E_s/E_p = N_s/N_p > 1` and `E_sI_s = E_pI_p`
`∴ E_s > E_p`
But Is < Ip. i.e more current flows through the primary coil. Therefore, one must use a thicker wire in the primary coil as compared to that in the secondary coil.
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संबंधित प्रश्न
Write the function of a transformer.
Mention various energy losses in transformer device
The primary coil of an ideal step-up transformer has 100 turns and the transformation ratio is also 100. The input voltage and power are 220 V and 1100 W, respectively. Calculate the
(a) number of turns in secondary
(b) current in the primary
(c) a voltage across secondary
(d) current in secondary
(e) power in secondary
The primary coil of a transformed has 800 urns and the secondary coil has 8 turns. It is connected to a 220 V a.c. supply. What will be the output voltage?
Name the principle on which functioning of a transformer depends.
What is the function of a step-up transformer?
Describe the construction and working of a transformer with a neat labelled diagram.
For an ideal step-down transformer, the quantity which is constant for both the coils is ______.
Mention two main sources of power loss in real transformers.
