Electricity
Electricity Electricity is due to the flow of electrons Electricity flows through a path called a circuit
Types of Circuits: Series Circuits Parallel Circuits Electricity Types of Circuits: Series Circuits Parallel Circuits
Series Circuits – have only one path for electricity to flow
Electricity If any part of a series circuit is broken, the circuit fails. If either light is unscrewed both lights will turn off.
Electricity
Parallel Circuit – have multiple paths for the electricity to flow
Electricity The branches (paths) of a parallel circuit are independent. If either light is unscrewed, the other will remain on.
Electricity
Circuit diagrams and electrical symbols Electricity Circuit diagrams and electrical symbols
Electricity
Electricity
Three Quantities of a Circuit Voltage Current Resistance Electricity Three Quantities of a Circuit Voltage Current Resistance
Electricity Current (I) -is the flow of charge -is measure in Amps (a) -current is moving electrons -increasing current causes more electricity to move through a device
Electricity Current is what carries energy Electric current flows from high electrical potential energy to low.
Current -one Amp is a flow of 1 coulomb of charge per second Electricity Current -one Amp is a flow of 1 coulomb of charge per second
Electricity Electric current flows in a circuit from the positive end of a battery and returns toward the negative end.
Electricity Current must pass through the meter when it is being measured.
Electricity Voltage -is measured in Volts (V) -is electric potential, how much work a battery can do -to increase voltage, use a stronger battery or add batteries
Electricity Current is what actually flows and does work. A difference in voltage provides the energy that causes current to flow.
Electricity A voltage difference of 1 volt means 1 amp of current does 1 joule of work in 1 second.
Electricity The voltage in your home electrical system is 120 volts, which means each amp of current carries 120 watts of power.
Electricity
Electricity Resistance - is the measure of how strongly a wire or other object resists current flowing through it.
Electricity Resistance -slows down current -adding devices in a circuit increases resistance -Resistance is measured in Ohms
Electricity Resistance and Current -if resistance is high, not much current flows -if resistance is low, a lot of
Resistance and Current Electricity Resistance and Current
Electricity Resistance and Current Every device that uses electrical energy adds resistance to a circuit.
Resistance and Current Electricity Resistance and Current
Electricity Resistance -One volt causes a current of 1 amp to flow through a resistance of 1 Ohm
Electricity A multimeter can be used to measure resistance of a device that has been completely removed from the circuit.
Electricity