What is the magnetic field due to a current I flowing through a straight wire at

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Question: What is the magnetic field due to a current I flowing through a straight wire at a distance d?

Options:

Correct Answer: μ₀I/(2πd)

Solution:

The magnetic field B at a distance d from a straight wire carrying current I is given by B = μ₀I/(2πd).

What is the magnetic field due to a current I flowing through a straight wire at a distance d?

What is the magnetic field due to a current I flowing through a straight wire at a distance d?

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.

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