Which of the following devices is associated with alternating currents only?
PHYSICS
WAEC 2023
Which of the following devices is associated with alternating currents only?
- A. Step-up transformer
- B. Induction coil
- C. Moving coil galvanometer
- D. Lead-acid accumulator
Correct Answer: A. Step-up transformer
Explanation
The device associated with alternating currents (AC) only from the provided options is the step-up transformer. Step-up transformers are specifically designed to work with alternating currents and are used to increase voltage levels in AC systems.
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