If the primary coil of a transformer is 200 tums and the secondary coil has 100 tums ,and the input voltage is 240v, what is the output voltage.
The output voltage can be found using the formula:
(Output voltage) = (Input voltage) * (Number of turns in secondary coil) / (Number of turns in primary coil)
Substitute the given values into the formula:
Output voltage = 240V * 100 / 200
Output voltage = 120V
Therefore, the output voltage of the transformer is 120V.