Physics · Electromagnetic Induction
A transformer is a device that:
- 1transfers mechanical power from one circuit to another without a change of frequency
- 2transfers electric power from one circuit to another without a change of frequency✓
- 3transfers magnetic energy from one circuit to another with a change of frequency
- 4transfers electric power from one current level to another with a change of frequency
Correct answer
transfers electric power from one circuit to another without a change of frequency
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