# A Transformer is Used to Step up an Alternating Emf of 200v to 440v. If the Primary Coil Has 1000 Turns, Calculate the Number of Turns in the Secondary Coil. - Physics (Theory)

Numerical

A transformer is used to step up an alternating emf of 200V to 440V. If the primary coil has 1000 turns, calculate the number of turns in the secondary coil.

#### Solution

This is an example of step-up transformer

n_s/n_p = V_s/V_p

therefore n_s/1000 = 440/200

therefore n_s = 2200  "turns"

Concept: Transformers
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