Batteries, Resistance, and Current

864 Words Oct 23rd, 2012 4 Pages
Battery, resistance, and current

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Batteries, Resistance and Current

“Battery-Resistor”:
Check “show battery” and “show cores”, watch what happens, adjust some variables

Why do electrons (blue dots) move? Draw a diagram of the battery, label the flow of electrons. The flow of current (+) is opposite; draw this and note if toward or away from + terminal of the battery.
The electrons move because they experience a electric current force in the wire. The battery causes an electric field and the electrons experience a force due to that field. The current flows in the opposite direction of the electrons and the flow of the
To make the circuit “cold”, what do you need to do? WHY?
To make the circuit “cold” we have to adjust the voltage, because the v is proportional to i the current, which is proportional to the temperature.

7. Describe the relationship between voltage and temperature.
The higher the voltage, the hotter the temperature will be.