Why does the needle of a magnetic compass deflect when it is kept beside a current-carrying wire?
Open in App
Solution
Magnetic compass:
A device for identifying direction upon that Earth's surface using a magnetic pointer that aligns with said Earth's magnetic field is called a magnetic compass.
Explanation:
According to Ampere, the magnetic field is produced by the moving charged particles.
In a current-carrying wire, the charged particles such as electrons move from a negative to a positive end. The motion of these charged particles produces the magnetic field according to Ampere law.
This magnetic field exerts a force on the compass's magnetic needle, causing the needle to deviate when it is kept beside a current-carrying wire.
