Question

An ideal transformer has 50 turns in the primary and 500 turns in the secondary. An input of 12 V will produce an output ofA) 12 V.B) 120 V.C) 1200 V.D) none of the above.

Answer 1

On an ideal transformer, the ratio between the number of turns in the primary and the secondary is the same as the ratio between the input and output voltage:

`\frac{N_{\text{ in}}}{N_{\text{out}}}=\frac{V_{\text{ in}}}{V_{\text{out}}}`

Since the secondary has 10 times more turns than the primary, then the output voltage must be 10 times greater than the input voltage.

Therefore, the answer is:

`120V`