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Turns Ratio

A certain ste...

Question

A certain step-up transformer has $400$ turns in the primary winding and $2, 000$ turns in the secondary winding. The turns ratio is

A

0.2

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B

0.4

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C

5

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D

25

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Solution

The correct option is C $5$
Given, $N_{p} = 400$ and $N_{s} = 2000$
The turns ratio, $n = \frac{N_{s}}{N_{p}} = \frac{2000}{400} = 5$

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