Question

Magnetic lines of force

• A. can intersect
• B. are open loops
• C. are real
• D. are closed loops

Answer 1

The correct option is D are closed loops

b'Force due to magnetic field is always far to magnetic
field, ${\overrightarrow{F}}_{may}.=q(\overrightarrow{v}\times \overrightarrow{B})$
As magnetic field liner is a closed loop,
$\therefore$ the magnetic line of force is also
closed loop but far to the magnetic field liner.