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Powerpoint for session 5 (PDF version)

DC Circuits

Phet simulation - Circuit Construction Kit

Conductors: a microscopic model

Current

• Current: measuring the flow of charge

Fluid Flow

• A Question
• An analogy with fluid flow

Batteries

• How a battery works
• A lead-acid battery
• Internal resistance

Ohm's Law and Resistance

• Ohm's Law
• Resistance
• Temperature dependence of resistance

Power

• Power
• The Cost of Electricity
• Resistance of a light bulb

Resistor Combinations

• Resistors in series or parallel
• Two bulbs in series
• Sample series calculation
• Sample parallel calculation