Which device does NOT make use of the magnetic effects of an electric current?

Physics

NECO 2002

A. hot-wire ammeter
B. moving-coil ammeter
C. moving-coil loudspeaker
D. moving-iron ammeter
E. telephone earpiece

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Correct Answer: Option A

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Which device does NOT make use of the magnetic effects of an electric current?

Correct Answer: Option A

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