The magnetic field due to a straight current-carrying conductor at a distance r

₹0.0

Question: The magnetic field due to a straight current-carrying conductor at a distance r from the wire is given by which formula? (2019)

Options:

Correct Answer: B = μ₀I/(2πr)

Exam Year: 2019

Solution:

The magnetic field (B) due to a straight current-carrying conductor at a distance r is given by B = μ₀I/(2πr).

The magnetic field due to a straight current-carrying conductor at a distance r from the wire is given by which formula? (2019)

The magnetic field due to a straight current-carrying conductor at a distance r from the wire is given by which formula? (2019)

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 wire, and r is the distance from the wire.
Step 3: Recognize that the formula for the magnetic field (B) at a distance r from the wire is B = μ₀I/(2πr).
Step 4: Remember that this formula shows how the magnetic field strength decreases as you move further away from the wire (as r increases).

Magnetic Field of a Current-Carrying Conductor – The relationship between the magnetic field (B) and the current (I) flowing through a straight conductor at a distance (r) from the wire, described by the formula B = μ₀I/(2πr).