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Moving Charges and Magnetism — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
A vertical straight conductor carries a current vertically upwards. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance the magnetic field at P is:
✓

Answer

  1. Same as at Q.
Explanation:
As per Biot Savart Law, Magnetic field at a point is inversely proportional to square of distance from the current carrying conductor.
Therefore magnitude of magnetic field is same at both points P and Q, irrespective of their position from the conductor.

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