The magnetic field due to a straight current-carrying conductor at a distance r
Practice Questions
Q1
The magnetic field due to a straight current-carrying conductor at a distance r is given by which formula? (2022)
B = μ₀I/2πr
B = μ₀I/r
B = μ₀I/4πr²
B = μ₀I/2r
Questions & Step-by-Step Solutions
The magnetic field due to a straight current-carrying conductor at a distance r is given by which formula? (2022)
Step 1: Understand that a straight current-carrying conductor creates a magnetic field around it.
Step 2: Identify the variables in the formula: B is the magnetic field, μ₀ is the permeability of free space, I is the current flowing through the conductor, and r is the distance from the conductor.
Step 3: Recognize the formula for the magnetic field around a straight conductor: B = μ₀I / (2πr).
Step 4: Remember that this formula shows how the magnetic field (B) changes with distance (r) from the conductor.
