A transformer has an efficiency of 80% and works at 100 volt and 4 kw. If the secondary voltage is 240volt calculate the primary and secondary currents
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The current in primary coil is 40 A and secondary coil is 13.3 A
- Given,
Efficiency = 80%
Input power = 4000 W
Input voltage = 100 V
Output voltage = 240 V
Calculating primary current
- We know that,
4000 = x 100
= 40 A
Calculating secondary current
- Also,
= 13.3 A
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