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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.
संबंधित प्रश्न
Explain the construction and working of the transformer.
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(i) Describe the observation if the coil is rapidly moved.
(ii) How would the observation be altered if (a) the coil has twice as many turns (b the coil was made to move three times as fast?
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