Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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video - Magnetic Fields Associated with Current Carrying Wires 1Purpose:To demonstrate magnetic lines of force around wires and coils carrying current.Procedure:![]() ![]() Scatter iron filings in tray and connect to our TDK-Lambda Power Supply (or battery with carbon rheostat in series). With current flowing, gently tap tray which will align filings with B field. Place on overhead projector. Be careful not to leave current on too long or damage will result. One may use knife switch. Equipment:
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