Which of the following meter movements use a heating effect of the current, which is independent of polarity?
A) Rectifier type
B) Thermal type
C) Electromagnetic type
D) D'Arsonval type

Question

Quizplus · Accepted Answer

Thermal type meters use the heating effect of the current to measure its magnitude. This method is independent of the current's polarity because the heat generated by a current is the same whether the current is flowing in one direction or the opposite.

Which of the Following Meter Movements Use a Heating Effect