EB-105 Electro Magnetism

Innovative Technologies in Education (ITE)

EB-105 Electro Magnetism

The EB-105 is a single board comprehensive instructional module designed to teach basic concepts of Electro-magnetism. The module can be operated either as a stand-alone unit, or integrated into the EB-2000 Computer Managed Laboratory. The module contains experiment circuits with which the student performs a number of conceptual experiments at various levels of difficulty. Test equipment, when used, is attached to the board via 2mm jacks placed at various points around the circuits. Students are required to do only a minimal amount of wiring, so training time is maximised. A comprehensive student manual is provided.. The manual is correlated to the exercises to convey concepts relating to the technologies covered, allowing focus on specific performance objectives.

DESCRIPTION The EB-105 printed circuit board contains a ballistic galvanometer with selectable gain amplifier, a sample coil, E-core transformer, toroid, variable air-gap transformer, relay, integrator and driving signal power amplifier. The supplied accessories are a small compass, two permanent magnets with holder, round air-coil with holder, rectangular air-coil, ferrous and plastic cores, ferrite ring core, and 0.4 mm plastic spacer plates. The EB-105 module is designed to enable the students to easily perform all experiments by reducing the set-up time with pre-assembled components. The procedure steps for each experiment are straightforward to reduce wasted time. The module must be plugged into a PUZ-2000 mainframe, or alternately be connected to an external power supply. The student can easily see the schematic and identify the real components. All major signals are output to 2-mm jacks for wiring and measurements.

RECOMMENDED EXPERIMENTS

MAGNETIC FIELD
Magnetic force

Magnetic field shape produced by two magnets

Various types of magnetic field sources

Simplified electric motor.

MAGNETIC FIELD OF AN ELECTRIC CURRENT
Measure field with a ballistic galvanometer

Magnetic field of a long, straight conductor

Magnetic field inside a current loop

Magnetic field produced by different types of coils.

INDUCED VOLTAGE
Faraday's law

Lenz's law

Magnetic circuit with air gap.

THE TRANSFORMER
Changing the amplitude of an AC voltage

Ideal and real transformer

Frequency response of transformers with different core materials.

HYSTERESIS
Drawing the hysteresis curve using a ballistic galvanometer

Displaying the hysteresis curve on an oscilloscope of a transformer driven by an AC signal.

REQUIRED ACCESSORIES
Multimeter

Function generator

Oscilloscope

DL-20 set of patch cords.

MANUAL
The student and instructor manuals are written by pedagogical experts in magnetism and electronics to support every stage of the learning process.