What is the magnetic field inside a long solenoid with n turns per unit length carrying a current I?
Practice Questions
1 question
Q1
What is the magnetic field inside a long solenoid with n turns per unit length carrying a current I?
μ₀nI
μ₀I/n
μ₀I/2n
μ₀I/4n
The magnetic field inside a long solenoid is given by B = μ₀nI.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the magnetic field inside a long solenoid with n turns per unit length carrying a current I?
Solution: The magnetic field inside a long solenoid is given by B = μ₀nI.
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 key variables in the formula. 'n' is the number of turns of wire per unit length of the solenoid, and 'I' is the current flowing through the wire.
Step 3: Recognize the constant μ₀. This is the permeability of free space, a constant that helps determine the strength of the magnetic field.
Step 4: Combine the variables into the formula. The magnetic field (B) inside a long solenoid can be calculated using the formula B = μ₀nI.
Step 5: Use the formula to find the magnetic field. Plug in the values for μ₀, n, and I to calculate the magnetic field inside the solenoid.
