Marine Electrical Systems USCG Question #451 (Set 15)

Which of the following would best describe a standard electric meter movement that uses the principles of electromagnetism to measure current?

Official USCG Answer & Rule Citation

Correct Answer: Option A — moving coil meter movement

A standard D'Arsonval meter movement utilizes a fine wire coil suspended within a permanent magnetic field. When current passes through the coil, electromagnetic forces deflect the needle against spring tension, forming the foundational principle of analog electrical measurement instruments outlined in IEEE 45.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.
Back to Marine Electrical Systems Sets