Hewitt Drew-It! PHYSICS Screencasts
Electric Current

91. Ohm's Law
Battery and bulb to explain, with numerical examples.

92. Voltage Drop
Why the sum of the voltages across bulbs in series adds to battery voltage.

93. Water and Electron Circuits
The similarities and differences between electric and hydraulic circuits.

94. Bulbs in Parallel
The rules of parallel circuits illustrated.

95. Electric Power
Battery and brightness of bulbs explained.

96. Equivalent Resistance
Rules for equivalent resistance for series and parallel circuits explained.

97. Circuit Resistances
Finding equivalent resistances for complex circuits.

98. Battery Demo
Circuit features featuring a car battery and bulbs.

99. Car Battery Power
A summary of current, voltage, resistance and power

100. Circuit Medley
A summary of electric circuits.