What is the magnetic field due to a current I flowing through a straight wire at a distance d?
Practice Questions
1 question
Q1
What is the magnetic field due to a current I flowing through a straight wire at a distance d?
μ₀I/(2πd)
μ₀I/(4πd²)
μ₀I/(d)
μ₀I/(2d)
The magnetic field B at a distance d from a straight wire carrying current I is given by B = μ₀I/(2πd).
Questions & Step-by-step Solutions
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Q
Q: What is the magnetic field due to a current I flowing through a straight wire at a distance d?
Solution: The magnetic field B at a distance d from a straight wire carrying current I is given by B = μ₀I/(2πd).
Steps: 5
Step 1: Understand that a straight wire carrying an electric current creates a magnetic field around it.
Step 2: Identify the variables: I is the current flowing through the wire, and d is the distance from the wire where we want to find the magnetic field.
Step 3: Know the formula for the magnetic field B around a straight wire: B = μ₀I/(2πd).
Step 4: Recognize that μ₀ is a constant called the permeability of free space, which helps in calculating the magnetic field.
Step 5: Plug in the values of I (current) and d (distance) into the formula to calculate B.
