Physicseasy · Past Paper
The primary purpose of earthing an electrical appliance is to:
ASave electricity
BProtect the appliance from overheating
CPrevent electric shock to the user
DIncrease the voltage
✓ Correct Answer: C — Prevent electric shock to the user
Earthing provides a low-resistance path for leakage current to flow to the ground, preventing the metal casing from becoming live.
Share this question
More from Physics
- The image of an object is formed on which part of the human eye?
- What is the relation between the radius of curvature (R) and focal length (f) of a spherical mirror?
- If the image distance (v) is 20 cm and object distance (u) is -10 cm for a lens, what is the magnification?
- A body dropped from height 'h' reaches the ground with velocity 'v'. If dropped from '4h', it reaches with:
- Pressure in a liquid at the same horizontal level is: