Demonstraton Electric Bell

Description

This motor-generator set gives students an insight into the physical and technical relationships on which electric motors, generators and transformers are based. The modular system allows to set up different function models without tools: Various DC motors Series and shunt motor Synchronous motor DC generator and alternator Transformer. This set allows the performance of 10 student experiments about the following topics: Magnetic field of a coil Conversion of electrical energy into kinetic energy Commutator Direct current motor Synchronous motor Series and shunt-wound motors Electromagnetic induction The electrical generator Engine-generator Transformer

Description

This apparatus is an effective demonstration of how the earth wire and fuse act together to protect both the user and the appliance. When the appliance is connected correctly and the LEDs in the appliance will illuminate to show the appliance is working. A fault is then demonstrated by swapping the live wire from inside the appliance to the case to show either the fuse melts (protecting the user and appliance) or in the case of no earth wire, the LEDs illuminate to indicate the passage of current through the person to ground. The fuse is easily visible and can be seen to ‘blow’ when a fault occurs.The unit is supplied with 10 m of fuse wire and full instructions. A 12 V DC power supply is required. Connections are made via 4 mm shrouded sockets.

Description

The large size of this battery operated apparatus allows students to better understand the operation of this basic circuit. Works on 9 V Battery. Includes Instructions. On wooden stand.

Description

Designed to demonstrate to implement and applications of electrical, electronic devices and simple circuits. These modules are fitted with 4 mm sockets. Components are directly mounted on printed PCB with diagram.Various modules are available as following Resistor LDR LED Push Switch Motor Reed Relay Reed Switch Relay Nand Gate Buzzer Thermistor Lamp Holder Single Pole Double Throw Switch Electromagnet Power Transistor