What is the magnetic field inside a long solenoid? (2023)
Practice Questions
Q1
What is the magnetic field inside a long solenoid? (2023)
Zero
Uniform and parallel
Concentric circles
Decreasing
Questions & Step-by-Step Solutions
What is the magnetic field inside a long solenoid? (2023)
Step 1: Understand what a solenoid is. A solenoid is a long coil of wire that creates a magnetic field when an electric current passes through it.
Step 2: Recognize that the magnetic field inside a long solenoid is different from outside it. Inside, the field is strong and uniform.
Step 3: Know that the magnetic field lines inside the solenoid run parallel to its length, meaning they are straight and evenly spaced.
Step 4: Remember that the strength of the magnetic field inside the solenoid depends on the number of turns of wire per unit length and the amount of current flowing through the wire.
