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

Answer:

$N_2=30turns$

So option (b) will be correct option

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

$\frac{N_1}{N_2}=\frac{V_1}{V_2}$

$\frac{15}{N_2}=\frac{80}{160}$

$N_2=30turns$

So option (b) will be correct option