Physicshard · Past Paper
An ideal transformer has 100% efficiency. If input power is 500W and output voltage is 50V, what is the output current?
A1 A
B5 A
C10 A
D25 A
✓ Correct Answer: C — 10 A
Power_in = Power_out (for ideal). 500W = 50V * I_out. I_out = 500 / 50 = 10 Amperes.
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