Which of the following statements is true about the magnetic field inside a sole

Which of the following statements is true about the magnetic field inside a solenoid? (2019)

Which of the following statements is true about the magnetic field inside a solenoid? (2019)

Step 1: Understand what a solenoid is. A solenoid is a coil of wire that creates a magnetic field when an electric current passes through it.
Step 2: Recognize that the magnetic field is the area around the solenoid where magnetic forces can be detected.
Step 3: Learn that inside a long solenoid, the magnetic field lines are straight and evenly spaced, which means the field is uniform.
Step 4: Note that the direction of the magnetic field inside the solenoid is parallel to its length (the axis).
Step 5: Remember that this uniformity and direction only applies if the solenoid is long enough compared to its diameter.

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