|
Electricity is produced when there is an imbalance in the movement of positively charged atomic nuclei and negatively charged electrons. The degree of this imbalance is called voltage, and the amount of flow is called current. Also, the difficulty of flow is called resistance. Current flows from areas of high voltage to areas of low voltage, and from positively charged areas to negatively charged areas.
How is Electricity Generated?
|
|
|
|
How are Voltage, Current and Resistance Related? Think of electricity as a kind of squirt gun. |
Now let's connect a battery to a lamp |
*The strength of the current is proportional to the voltage, and inversely proportional to resistance. This is called Ohm's Law. *The electrical energy consumed by a resistor is called electrical power. |
Return to the Gakushukan Home Page | |||
Back | Forward |