PH-1567
Transformers
Physics · Secondary 4 · Hard · Transformers
An ideal transformer has 800 turns on its primary coil and 200 turns on its secondary coil. The primary is connected to a 240 V a.c. supply and the output current is 4.0 A. What is the input current?
- 0.25 A
- 1.0 A
- 4.0 A
- 16 A
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