In a solenoid carrying current, what is the magnetic field inside the solenoid?
Practice Questions
Q1
In a solenoid carrying current, what is the magnetic field inside the solenoid?
Zero
μ₀nI
μ₀I
μ₀I/(2n)
Questions & Step-by-Step Solutions
In a solenoid carrying current, what is the magnetic field inside the solenoid?
Correct Answer: B = μ₀nI
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: Know that when current flows through the solenoid, it generates a magnetic field inside it.
Step 3: Learn the formula for the magnetic field inside a solenoid: B = μ₀nI.
Step 4: Identify the variables in the formula: B is the magnetic field, μ₀ is the permeability of free space (a constant), n is the number of turns of wire per unit length of the solenoid, and I is the current flowing through the wire.
Step 5: Remember that the magnetic field inside the solenoid is uniform and directed along the axis of the solenoid.
