Current, Voltage, Resistance
How to light up a bulb?
Draw out two possible arrangements of the set up that would allow the bulb to light up, and also two that does not.
Double batteries
The electroscope!
Suppose the current would be change depends on where the milliamperes placed.
Same
Vd =I/pqA
Here were the 2 graphs of potential v. time and current v.time. Notice that both graphs had almost perfectly identical graphs.
We did some practice to find the relationship between the length, radius, and resistance. The resistance is directly proportional to the the length, the longer the wire the higher the resistance. The resistance is inversely proportional to the cross sectional area, the higher the are, the easier for the current to flow, the lower the resistance becomes
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