What is the magnetic field inside a long straight conductor carrying a current I
Practice Questions
Q1
What is the magnetic field inside a long straight conductor carrying a current I?
0
μ₀I/2πr
μ₀I/4πr
μ₀I/πr
Questions & Step-by-Step Solutions
What is the magnetic field inside a long straight conductor carrying a current I?
Step 1: Understand that a long straight conductor is a wire that carries an electric current (I).
Step 2: Know that the magnetic field (B) is created around the wire when current flows through it.
Step 3: Learn about Ampere's Law, which helps us calculate the magnetic field around a conductor.
Step 4: The formula from Ampere's Law for a long straight conductor is B = μ₀I / (2πr).
Step 5: In this formula, μ₀ is the permeability of free space (a constant), I is the current in the wire, and r is the distance from the center of the wire to the point where you want to find the magnetic field.
Step 6: To find the magnetic field at a specific distance (r) from the wire, plug in the values of I and r into the formula.
