Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
When current passes through the circuit a compass needle rests in which direction (with respect to the Earth)?
✓
Answer
South - north
Explanation:
The earth acts like a huge magnet. Thus in the absence of electric current a compass needle always comes to rest in Earths North - south direction.
However, when current passes through the circuit the needle comes to rests in the direction opposite to the magnetic field of Earth i.e. South-North direction.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.