Question 42
Electromagnetic InductionWhen a transformer has more secondary windings than primary windings, it
- A.has a smaller secondary current
- B.has a greater power output
- C.is a step-down transformer
- D.increases the total energy output.
Show the answer and explanation
Answer: A (has a smaller secondary current)
Explanation
More secondary turns step the voltage up. Since power out cannot exceed power in, the secondary current is smaller.