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AC Magnetic Field Coil
| Settings | AC Magnetic Field Coil remove | BERT - Battery Electrical Resistance Tester remove | 2-12V AC/DC Powerlock remove | National Grid Pylons Only remove | Mini National Grid remove | Irwin De-Mountable Transformer remove |
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| Name | AC Magnetic Field Coil remove | BERT - Battery Electrical Resistance Tester remove | 2-12V AC/DC Powerlock remove | National Grid Pylons Only remove | Mini National Grid remove | Irwin De-Mountable Transformer remove |
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| Description |
AC Magnetic Field Coil
| Code: EBR5010
BERT is a simple way of introducing electrical resistance and resistivity to a class. It consists of a circuit board that may be drawn on using the supplied pencil. Connecting the two sides of the board together by a pencil line gives a conducting track and the LED lights. The brightness of the LED gives an indication of the resistance of the path. Drawing the line thicker decreases the resistance, as does shortening the path. Resistances in parallel may be studied and a “volume control” simply made.
BERT may also be used to test various materials to see whether they are conductors or insulators. Liquids and pastes may also be tested. The conductivity of the class may be studied as well as how a switch works. When you are finished the pencil lines may be removed with the supplied eraser.
| Code: EPU0115
The Powerlock power supply has both a lockable AC and DC outputs ranges by a simple key making it impossible for students to change the voltage. The Powerlock offers 2,4,6,8,10 and 12 in both DC and AC. Outputs may also be used simultaneously up to the rated output required. For safety, the output is also protected by a simple push button cut-out. Each unit is supplied with 2 that can be used on all Powerlock units if needed. Supplied with 2 keys.
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Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.
| Other equipment needed is two standard 4mm plugged leads and a power supply capable of delivering 2-3 volts at 1 amp. | By connecting an ac power source to one of the coils and reading the voltage from the other coil transformer action (either step up or step down) may be readily demonstrated. The efficiency of the transformer may be studied –does the efficiency change if the laminate top is not firmly fixed? What happens if it is not present? Other more esoteric effects such as Magnetostriction may also be studied. |
| Content | Code: IPC-4915-W
AC Magnetic Field Coil
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A stunningly effective way of teaching the basics of electrical resistance.
The kit comprises of:
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| Code: ENG1015
Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.
| Code: ENG1050
Our mini national grid system is a very cost-effective way of teaching the principles used by the National Grid to supply electrical power to our homes. This kit comprises two printed circuit boards and a set of "HT" leads to interconnect them and is SELV (Safety /Separated Extra Low-Voltage) classed, which means that no part of the system is at more than 50 volts - which means it is very safe and suitable for student use. The system allows the user to compare electrical transmission at low and high voltages and the results are displayed by the brightness of the two on-board MES lamps which are supplied.
| Code: L1017
A demountable transformer kit is an ideal way to demonstrate transformer action. The kit comprises three coils, one with 300 turns, one with 600 turns and one with 1200 turns. These slide onto a laminated steel frame to form several possible transformer configurations.
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| Additional information |
