Simulation of electron drift speed versus temperature
Metal Lattice Simulation Voltage 3.0 V Temperature 20 °C Start Field Reset Mean drift speed: 0.0 mm/s At low temperature, ions vibrate less, so collisions are fewer and drift...
15 Currents
Videos on Series and Parallel Bulbs
These are two videos that I made on series and parallel bulbs. The second video is specially made to highlight the increase in brightness of the remaining bulbs when one or more...
AC Power with Half-Wave Rectification
As a means of visualising what happens to the potential difference, current and power dissipated in an alternating current circuit with half-wave rectification, I have created the...
Root-mean-square Currents
The concept of root-mean-square values for Alternating Currents is challenging if students are to relate the I-t graph with the I rms value directly. They have to be brought...
How to survive a lightning strike
This is an interesting question on electricity: in order to survive a lightning strike, which of the following costumes offer the best protection? A coat of armour, your birthday...
How internal resistance affects brightness of bulbs in parallel
Squishy Circuits
image taken from http://courseweb.stthomas.edu/apthomas/SquishyCircuits/howTo.htm I came across this Ted video on Squishy Circuits, presented by AnnMarie Thomas from the...