Question

The direction of magnetic lines of force inside the solenoid is from \dots

• A. north to south
• B. south to north
• C. east to west
• D. west to east

Hint:

Inside a solenoid, magnetic field lines are parallel and equally spaced, indicating that the magnetic field inside is nearly uniform.

Answer 1

The Correct Option is B

Concept: A solenoid behaves like a bar magnet and produces magnetic field lines similar to those of a bar magnet.

Step 1: Recall the direction of magnetic field lines. Magnetic field lines always form closed continuous loops.
• Outside a magnet or solenoid, field lines travel from North pole to South pole.
• Inside the magnet or solenoid, field lines travel from South pole to North pole.

Step 2: Apply this concept to a solenoid. Inside the solenoid, magnetic field lines are straight, parallel, and directed from: \[ \boxed{\text{South pole to North pole}} \]

Step 3: Identify the correct option. Hence, the correct answer is option (2).