Oersted’s Law Demonstrator, Current and Magnetic Needle Deflection Apparatus
$30.00(Ex GST)
- Oersted’s law demonstrator, shows magnetic effect of current in straight wire on needle deflection.
- Wire path over or under needle, reverse current direction, observe field direction change clearly.
- Aluminium frame with permanent magnetic needle on sensitive agate bearing, smooth low-friction movement.
- Sturdy base with binding posts, stable setup for repeatable electricity and magnetism practicals.
- Needle length noted as 75 mm or 15 cm in supplied info, confirm model specification before purchase
- Description
Description
Oersted’s law apparatus with needle and stand is a classroom demonstrator for the magnetic effect of an electric current in a straight conductor. A permanent magnetic needle rotates freely inside an aluminium frame on a sensitive agate bearing. When current is passed through a wire positioned above or below the needle, and the direction is reversed, the needle deflection shows how magnetic field direction depends on current direction.The unit is fitted with a sturdy base and binding posts for circuit connection. Needle length is stated as 75 mm in the title and 15 cm in the supplied notes, so confirm the exact needle length for your model before ordering.
FAQs
Q: What does this apparatus demonstrate?
A: Oersted’s law, the magnetic field produced by electric current in a wire.
Q: How is current applied relative to the needle?
A: Current can be arranged to flow over or under the needle, in either direction.
Q: What supports needle sensitivity?
A: A low-friction agate bearing for free rotation and clear deflection.
Q: How is it connected to a circuit?
A: Via binding posts on the base.
Q: Is this electromagnetic induction equipment?
A: It demonstrates current-produced magnetic field, not induction.
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