PHYSICS
JAMB 2017 - Question 36
Physics 2017 JAMB Past Questions - Question 36: A transformation has 300 turns of wire in the primary coil and 30 turns in the secondary coil. IF the input voltage is 100 volts, the output voltage is
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
A
Explanation
To determine the output voltage of the transformer, we can use the turns ratio between the primary and secondary coils. The turns ratio is given by the formula:
Turns ratio = Number of turns in the primary coil / Number of turns in the secondary coil
In this case, the turns ratio is:
Turns ratio = 300 turns / 30 turns = 10
The turns ratio represents the ratio of the input voltage to the output voltage. Therefore, if the input voltage is 100 volts, we can calculate the output voltage as follows:
Output voltage = Input voltage / Turns ratio
Output voltage = 100 volts / 10 = 10 volts
Therefore, the output voltage of the transformer is 10 volts.
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