If the current in a wire is reversed, what happens to the direction of the magne
Practice Questions
Q1
If the current in a wire is reversed, what happens to the direction of the magnetic field around the wire?
It remains the same
It reverses direction
It becomes zero
It doubles in strength
Questions & Step-by-Step Solutions
If the current in a wire is reversed, what happens to the direction of the magnetic field around the wire?
Step 1: Understand that a wire carrying electric current creates a magnetic field around it.
Step 2: Know that the direction of the magnetic field is determined by the direction of the current flowing through the wire.
Step 3: If the current in the wire is reversed, it means the flow of electricity changes direction.
Step 4: When the current changes direction, the magnetic field also changes direction.
Step 5: Therefore, reversing the current in the wire reverses the direction of the magnetic field around it.
Electromagnetism – The relationship between electric current and magnetic fields, specifically how the direction of the magnetic field is determined by the direction of the current.
