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2-2 Electric Current

Unit 2 lesson 2 Electric Current

What are two kinds of current? alternating(AC) and Direct (DC)
A flow of electric charge that regularly reverses its direction Alternating Current (AC)
Electric current that flows in only one direction Direct Current (DC
A flow of electric charge that passes a location every second. electric current
The unit of current Ampere (A)
A material's opposition to the flow of electric current Resistance
Unit for resistance Ohms
Amount of work required to move each unit of charge between two point. PUSH Voltage
Unit for Volatage Volts (V)
A material in which charges can move freely Electrical Conductor
A material in which charges cannot move freely Electrical Insulator
What affects electric current? (2) Voltage and Resistance
Example of Direct current would be ? Flashlight or outlet Flashlight
Example of Alternating current would be ? flashlight or outlet Outlet
If voltage applied to a given wire increases then its current will ____________________ Increase
What are four factor that detemine the resistance of a wire? Composition, temperature, length and thickness
How does resistance affect electric current? It lowers it.
What happens to electric current when voltage increases? Current increases
What happens to electric current when voltage stays the same but resistance increases? Current decreases.
Shorter wire has HIGH OR LOW resistance low
Thicker wire has HIGH OR LOW resistance. low
Hot wire has HIGH or LOW resistance high
Something that turns a device on and off? Switch
When a loop is closed the device is? Off
When a loop is open the device is ? Off
A complete closed loop/path in which electric charges can flow. Electric Circuit
Created by: KHurst24
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