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Magnetism
Helmholtz Coil
Pair of coils for generating a uniform magnetic field perpendicular to the axis of a tube.
Specifications:
- Coil diameter: 300 mm approx.
- Coil spacing: 150 mm.
- Number of turns per coil: 124.
- Enamelled copper wire thickness: 1.2 mm.
- DC resistance: 2 Ohms each.
- Maximum coil current: 5.5 A.
- Maximum coil voltage: 6 V.
- Maximum flux density at 5 A: 2 mT.
PH41176B -
Magnetism
Magnetometer
A plastic box with aluminium dial graduated in 0 – 90° four times, anti-parallax mirror and steel pivot. The short magnetic needle has a synthetic sapphire bearing and a light aluminium pointer designed for precise readings and maximum damping. The compass box has a hollow circular cavity to fit tangent galvanometer stand or deflection magnetometer base.
PH41180 -
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Magnetism
Tangent Galvanometer
Classic demonstration of how a current loop generates a magnetic field. Two coils of insulated wire, with 5 and 10 turns respectively, are wound around a plastic ring. The ring is mounted on a plastic base with 3 binding posts that allow connection to five, ten, or fifteen turns of wire. A magnetic compass (included) can be placed on the base to observe and measure deflection of the compass. With compass 38mm Includes instructions.
PH41187B -
Magnetism
Tangent Galvanometer
Supertek tangent galvanometer is used to investigate the magnitude and direction of the magnetic field produced by a current-carrying conductor. The apparatus may also be used to determine the magnitude and direction of the horizontal component of the earth’s magnetic field. In this tangent galvanometer, 305 cm of wire is wound on the nonmagnetic stand, which is of a sturdy design. 4mm sockets are provided for the input. Supplied with user manual.
PH41187E -
Magnetism
Tangent Galvanometer
Investigate magnetic fields produced by an electric current. Students observe as a current-carrying coiled wire produces a magnetic field perpendicular to the direction of the current. Students learn that the strength of the magnetic field varies with the number of times the wire is coiled and voltage applied across the coils. Complete instructions provided.
PH41187N -
Magnetism
Swivel stand for bar magnet
This swivel stand provides a stable and convenient setup for holding bar magnets during experiments. It allows free rotation of the magnet to demonstrate magnetic alignment and directional behavior with high accuracy. Designed with durability and smooth pivoting action, this stand is ideal for studying the Earth’s magnetic field, magnet polarity, and related demonstrations.
Features:
- Sturdy base for stable positioning
- Supports bar magnets securely
- Useful for demonstrating magnetic alignment and polarity
PH41190A -
Magnetism
Barlow’s Wheel
This apparatus spins an electrically charged copper wheel spin, without the aid of a motor. When the wheel is electrified by a voltage source (battery), the slotted copper disc sets up eddy currents throughout the structure. This electricity is then attracted to 4 strong neodymium magnets, causing the wheel to spin.
PH41225 -
Magnetism
Faraday’s Disc
To demonstrate conversion of mechanical energy into electrical energy. A copper disc with a turning handle rotates between two poles of a horseshoe magnet. On base with two terminals, one of which is connected to a pillar supporting the disc and the other to a brush bearing on edge of the disc.
PH41226 -
Magnetism
Racing Rings
Racing Rings consists of three rods one each of copper, aluminum and PVC. When ring magnet is dropped down the PVC rod, it falls unobstructed. When the rings are sent down either of the metal rods, they experience a slower fall. The two metal rods create an induced magnetic field to that adds resistance to the rings’ travel. Since the metals are different, they fall at different rates.
PH41232
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