For a closed surface in a magnetic field, lines leaving equal lines:
AStarting
BEntering
CTurning
DStopping
Answer & Solution
Correct answer: B. Entering
1. Magnetic field lines never start or stop inside the surface.
2. Every line that goes out must have come in.
3. So lines leaving equal lines entering.
_Source: NCERT Class 12 Physics Part I, Chapter 5, Magnetism and Matter._
Related questions
Magnetic lines of force are crowded most closely together where the field is:Which statement is NOT a property of magnetic lines of force?Susceptibility is used to classify materials as diamagnetic, paramagnetic or:The hysteresis loop is a curve plotting B against:Magnetic susceptibility values in the table are quoted at:Among susceptibility, permeability and relative permeability, how many are independent?The magnetic moment inside an atom comes from an electron that is:In a bulk material the atomic magnetic moments add up: