AP EAMCET · PHYSICS · Alternating Current
The shiny metal disk in the electric power meter (along type) rotates due to
- A temperature change
- B eddy currents
- C an external motor
- D pressure change
Answer & Solution
Correct Answer
(B) eddy currents
Step-by-step Solution
Detailed explanation
The shinny metal disc in the electric power meter rotates due to eddy currents. The magnetic field induces the electric current in the disc.
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