Please explain the oersted's experiment in detail . why does the magnetic needle deflect when brought near a current carrying conductor? Does it have have a property to deflect when brought near a magnet and how does the noth and the south pole of the magnetic needle deflect the geographic north and south pole being the same ?
Dear Student,
Hans Christian Oersted proved electric current can affect a compass needle.
However,Oersted could not explain why.
He actually saw a deflection in compass needle when it was brought near current carrying wire.
REASON: The wire will carry a current that creates a magnetic field around itself. Bringing the compass near the wire or in the loop will cause the compass needle to move. The current will induce a magnetic field based on the right-hand rule. Make a “thumbs-up” sign with your right hand. The thumb will be the direction of the current (flowing from the negative to positive terminal of the battery) and the fingers will curve around in the direction of the magnetic field. The magnetic field created by the current will interfere with the magnetic field of compass and hence experiences deflection when it is brought near a wire.
The north and the south pole of the magnetic needle deflect the geographic north and south pole being the same because the magnetic field due to current carrying current is more strong than that due to Earth magnetic field.
Hans Christian Oersted proved electric current can affect a compass needle.
However,Oersted could not explain why.
He actually saw a deflection in compass needle when it was brought near current carrying wire.
REASON: The wire will carry a current that creates a magnetic field around itself. Bringing the compass near the wire or in the loop will cause the compass needle to move. The current will induce a magnetic field based on the right-hand rule. Make a “thumbs-up” sign with your right hand. The thumb will be the direction of the current (flowing from the negative to positive terminal of the battery) and the fingers will curve around in the direction of the magnetic field. The magnetic field created by the current will interfere with the magnetic field of compass and hence experiences deflection when it is brought near a wire.
The north and the south pole of the magnetic needle deflect the geographic north and south pole being the same because the magnetic field due to current carrying current is more strong than that due to Earth magnetic field.