PH-1561
Transformers
Physics · Secondary 4 · Hard · Transformers
A 240 V to 12 V transformer supplies a current of 4.0 A to a device. The transformer is 80% efficient.
What is the input current to the transformer?
What is the input current to the transformer?
- 0.25 A
- 0.80 A
- 1.0 A
- 4.0 A
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