alleryThe Biot-Savart field falls off with distance as its:
AInverse cube
BInverse only
CPlain square
DInverse square
Answer & Solution
Correct answer: D. Inverse square
1. Moving away from the element weakens the field.
2. The weakening follows a particular power of r.
3. It is inversely proportional to the square of the distance.
_Source: syllabus Physics Part I, Chapter 4, Moving Charges and Magnetism._
Keep practising Moving Charges and Magnetism
Browse all Moving Charges and Magnetism questions for CBSE Class 12 (Science), or explore more Physics topics.
Related questions
If the turns N in a galvanometer coil are doubled, voltage sensitivityDoubling the coil turns N in a galvanometer does what to current sensitivity?A 100 ohm, 1 mA galvanometer becomes a 10 V voltmeter. Series resistance?How is a galvanometer converted into an ammeter?The deflection of a moving coil galvanometer is proportional toIn a moving coil galvanometer, what balances the magnetic torque?A moving coil galvanometer gets its radial field usingAmpere suggested that all magnetism arises from