Question

Identify the wrong statement among the following:

• A. Magnetic field lines are closed curves
• B. Inside the magnet, the direction of field lines is from north pole to south pole
• C. The magnetic field is stronger where the magnetic field lines are crowded
• D. Magnetic field lines do not intersect with each other

Hint:

Direction of magnetic field lines: - Outside the magnet: North $\rightarrow$ South - Inside the magnet: South $\rightarrow$ North

Answer 1

The Correct Option is B

Step 1: Recall the properties of magnetic field lines.
Magnetic field lines form closed loops, originate from the north pole and terminate at the south pole outside a magnet, and continue from the south pole to the north pole inside the magnet. The density of lines indicates field strength, and they never intersect. 

Step 2: Evaluate each statement.
(1) Correct: Magnetic field lines are indeed closed curves. 
(2) Wrong: Inside a magnet, field lines go from south to north. Outside, they go from north to south. 
(3) Correct: Closer lines indicate a stronger magnetic field. 
(4) Correct: Magnetic field lines never intersect. 

Step 3: Identify the wrong statement.
Statement (2) is incorrect.