What is the magnetic field inside a long, straight solenoid carrying current I?
Practice Questions
1 question
Q1
What is the magnetic field inside a long, straight solenoid carrying current I?
0
μ₀I
μ₀nI
μ₀nI/2
The magnetic field inside a long, straight solenoid is given by B = μ₀nI, where n is the number of turns per unit length and μ₀ is the permeability of free space.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the magnetic field inside a long, straight solenoid carrying current I?
Solution: The magnetic field inside a long, straight solenoid is given by B = μ₀nI, where n is the number of turns per unit length and μ₀ is the permeability of free space.
Steps: 5
Step 1: Understand what a solenoid is. A solenoid is a long coil of wire that creates a magnetic field when an electric current flows through it.
Step 2: Identify the current (I) flowing through the solenoid. This is the electric current that generates the magnetic field.
Step 3: Determine the number of turns per unit length (n). This means how many loops of wire are in a certain length of the solenoid.
Step 4: Know the constant μ₀, which is called the permeability of free space. It is a constant value used in magnetic field calculations.
Step 5: Use the formula B = μ₀nI to calculate the magnetic field (B) inside the solenoid. Here, you multiply μ₀ by n and then by I.
