Electric Motor Model
With this simple electric motor model students can investigate the relationship between voltage supplied to rotor and polarity / position of magnets. On applying 6V DC to 4mm sockets, the rotor will begin to rotate across its vertical axis.
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The demonstration transformer power supply is a unique power supply designed for use specifically with the Demonstration Transformer
(PH50172A and PH50172S).- Output Voltage: Fixed output of 4 & 8V DC @ 5A, 2 & 4V AC @ 5A.
- Output Voltage for Mains Coil Substitute: 4V @ 10A.
- With Resettable short circuit protection.
PH50172AC/3 -
Electricity
Earth, Neutral And Live Board Demonstration
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 metres of fuse wire and full instructions. A 12V D.C. power supply is required. Connections are made via 4mm shrouded sockets.PH50136E -
