Electricity & Magnetism
Lab experiments can be performed to let you demonstrate:
-Magnetic domains in a Ferrimagnetic garnet (FMG).
-Formation of magnetic bubbles.
-The Barkhausen effect.
-Plotting of hysteresis loops.
In 1908 Weiss proposed his domain theory to explain the magnetic properties of materials. It is for these kinds of experiments that this apparatus has been developed.
TEL-Atomic's new pocket size TeslaMeter 2000 is unique for the features offered. The Sensor will measure axial or transverse magnetic fields up to 2000 mT, and can be set for Auto range. However, if one of the 3 manual ranges is selected, an analog output of 2 volts for FSD of each range is possible, making it easy to use with a computer interface.
- Axial and Transverse magnetic probes
- Ranges: 2000, 200, 20mT and Auto
- Analog and Digital output
- 4½ Digit LCD readout
- Temperature compensated sensor
- USB Connection
· Mounts on any Helmholtz coils up to 16" in diameter
· Reliably and reproducibly holds a magnetic probe in place
· Designed to hold axial or transverse Teslameter probes
· 1 mm gradations for measurement of probe position
· Built entirely from non-magnetic materials
The Magnetic Measurement Mount is the perfect tool for mapping the field inside Helmholtz coils. With two axies of motion, the probe can be positioned anywhere on a plane inside the Helmholtz coils. Built in scales allow a student to quickly measure the magnetic field along the axis of the coils, or at any other point inside the coils. The probe can be rotated 90 degrees to easily measure any magnetic fields perpendicular to the axis of the coil. With a little patience, a student can easily create a full 3D map of the magnetic field inside a pair of Helmholtz Coils.
The Hall Effect is the production of a potential perpendicular to the flow of current in a conductor in a magnetic field. The effect is especially interesting in semiconductors because both electrons and holes contribute to current flow and the Hall effect. The TEL-13114SYS2 Hall Effect System allows students to investigate the Hall effect in undoped Germanium, N-doped Germaium, and P-Doped Germanium. In addition to learning the pure science of the Hall effect, students will develop an understanding of the operating principles of common magnetic sensors, such as the TeslaMeter 2000, Magnetic Sensor. The system includes:
- Hall Effect Basic Apparatus
- Printed circuit board with undoped germanium crystal
- Printed circuit board with p-doped germanium crystal
- Printed circuit board with n-doped germanium crystal
- U-Shaped Core
- Pair of Pole-Shoes
- Pair of Clamps
- 2 x Coil with 600 Turns (2x)
- Power Supply
- AC Power Supply
TEL-13111-2, 13112-2, 13113-2 Germanium Crystals
An interchangeable board with an undoped (TEL-13111-2), p-doped (TEL-13112-2) or n-doped (TEL-13113-2) germanium crystal, intended for investigating the conductivity of germanium as a function of temperature. Has contacts for transverse current, an integrated resistive heating element with temperature sensor, and a multi pin plug for connecting the circuit board to the basic Hall effect apparatus (TEL-13114-2).