The primary of a step-down transformer connected to a 240 V source has 1000 turns. The secondary has 100 turns. What is the output voltage of this transformer?
To calculate the output voltage of a transformer, you need to know the turns ratio of the primary to secondary windings. The turns ratio is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding.
In this case, the primary has 1000 turns and the secondary has 100 turns. Therefore, the turns ratio is:
Turns ratio = Number of turns in primary / Number of turns in secondary
= 1000 turns / 100 turns
= 10
The turns ratio of this transformer is 10.
Now, to calculate the output voltage, you need to multiply the input voltage by the turns ratio.
Output voltage = Input voltage * Turns ratio
= 240 V * 10
= 2400 V
Therefore, the output voltage of this transformer is 2400 V.