In an ideal transformer,how many turns are necessary in a 110-V primary if the 24-V secondary has 100 turns?
A)458
B)240
C)110
D)22

Question

Quizplus · Accepted Answer

The turns ratio in a transformer is directly proportional to the voltage ratio. Therefore, if the secondary has 100 turns and produces 24 V, for a primary voltage of 110 V, the number of turns in the primary would be calculated as follows: $ \frac{110V}{24V} = \frac{N_{primary}}{100 turns} $, solving for $ N_{primary} $ gives $ N_{primary} = \frac{110}{24} \times 100 = 458.33 $ turns. Since the number of turns must be an integer, we round to the nearest whole number, which is 458.

In an Ideal Transformer,how Many Turns Are Necessary in a 110-V