Which of the following devices is associated with alterna...
Which of the following devices is associated with alternating currents only?
Step-up transformer
Induction coil
Moving coil galvanometer
Lead-acid accumulator
Correct answer is A
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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