Correct option is C
An energy meter, also known as a watt-hour meter, measures electrical energy consumption. Its construction involves several key components: a driving system with electromagnets, a rotating aluminum disc, a braking system, and a registering system. These components work together to translate electrical energy into a measurable rotation, which is then translated into a displayed energy reading.
Creeping in an energy meter: This is a slow, unintended rotation of the meter disc even when there is no significant power load, leading to inaccurate energy readings.
Solution with holes: By drilling two holes on opposite sides of the disc, when the disc comes near the magnet's pole, the holes disrupt the magnetic field, preventing the disc from rotating continuously and thus minimizing creeping.
