In which direction does the magnetic field point due to a current flowing in a s

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Question: In which direction does the magnetic field point due to a current flowing in a straight wire?

Options:

Correct Answer: Perpendicular to the wire

Solution:

The magnetic field lines around a straight wire are concentric circles, which are perpendicular to the wire.

In which direction does the magnetic field point due to a current flowing in a straight wire?

In which direction does the magnetic field point due to a current flowing in a straight wire?

Step 1: Understand that a straight wire carrying an electric current creates a magnetic field around it.
Step 2: Visualize the wire as a straight line. Imagine the current flowing through it.
Step 3: Remember that the magnetic field lines form circles around the wire.
Step 4: Know that these circles are perpendicular (at a right angle) to the wire.
Step 5: Use the right-hand rule: Point your thumb in the direction of the current, and your fingers will curl in the direction of the magnetic field lines.

Magnetic Field Direction – The direction of the magnetic field created by a current-carrying wire can be determined using the right-hand rule, where the thumb points in the direction of the current and the fingers curl in the direction of the magnetic field lines.
Magnetic Field Lines – The magnetic field lines around a straight wire are concentric circles that are perpendicular to the wire, indicating the nature of the magnetic field.