Question

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

Answer 1

`N_2=30turns`

So option (b) will be correct option

Step-by-step explanation:

We have given that there is a step up transformer in which number of turns in primary coil is 15

That is,
`N_1=15`

Primary voltage
`V_1=80volt`, and secondary voltage
`V_2=160volt`

We have to find the number of turns in the secondary \

We know that for the transformer

`(N_1)/(N_2)=(V_1)/(V_2)`

`(15)/(N_2)=(80)/(160)`

`N_2=30turns`

So option (b) will be correct option