Electricity. Electric Current The net movement of electric charges in a single direction Electrons...

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Electricity

Transcript of Electricity. Electric Current The net movement of electric charges in a single direction Electrons...

Page 1: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Electricity

Page 2: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Electric Current• The net movement of electric

charges in a single direction• Electrons in a material (metal wire)

are in constant motion in all directions = No Net Movement of electrons in one direction• In an electric current the electrons

drift in the direction of the flow

Page 3: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Electric Current• Measured in Amperes• 1 Ampere = 6,250 million electrons

flowing past a point every second

Page 4: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Voltage Difference• Electric Charge flows from higher

voltage to lower voltage• Measured in Volts

Page 5: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Resistance• The tendency for a material to

oppose the flow of electrons• Changes electrical energy into

thermal energy or light• Measured in Ohms (Ω)

Page 6: Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Ohm’s LawI Current (amperes)V Voltage Difference (volts)R Resistance (ohms)

(89-90)