Question

What happens to a current-carrying wire in a magnetic field if the current is reversed?


The wire will be deflected perpendicular to the magnetic field in the opposite direction.

The wire will be deflected parallel to the magnetic field in the opposite direction.

The wire will be deflected perpendicular to the magnetic field in the same direction.

The wire will be deflected parallel to the magnetic field in the same direction.

Answer 1

the 3rd one is the answer sir...... ^ _ ^

Answer 2

When the current is reversed in a magnetic field, the current-carrying wire will be deflected parallel to the magnetic field in the opposite direction.

• The direction of the force on the conductor can be determined by using Fleming's Left Hand Rule.
• When we put the thumb, the index finger, and the middle finger perpendicular to each other, the thumb points towards the force on the conductor, the index finger points towards the direction of the magnetic field, and the middle finger points towards the direction of the current.
• If the direction of the current is reversed the compass needle is deflected parallelly in the opposite direction.
• This shows that when the direction of electric current flowing in the wire is reversed, then the direction of the magnetic field produced is also reversed.