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Self Induction

For a step up...

Question

For a step up transformer, number of turns in the primary windings is the number of turns in the secondary windings.

A

greater than

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B

lesser than

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C

same as

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Solution

The correct option is B lesser than
For a solenoid, induced emf depends on the number of turns in the solenoid. Therefore, in a step up transformer, to increase the voltage, number of turns in the secondary windings has to be greater than the number of turns in the primary windings.

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