Post-UTME Physics 2007 Objective — Question 10
Question 10 of 10 from the Post-UTME Screening (Post-UTME) Physics 2007 Objective paper, with the correct answer and a full explanation.
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Which of the following devices is not based on the motor effect?
- A. hot-wire ammeterCorrect
- B. moving-coil galvanometer
- C. moving-coil loudspeaker
- D. electric motor
Explanation
A hot-wire ammeter works on the heating effect of current, not the motor (force on a current-carrying conductor) effect.
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