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How Does Electricity Work? (Series (The same current flows through each…
How Does Electricity Work?
Series
The same current flows through each part of a series circuit.
The voltage drop across a resistor in a series circuit is directly proportional to the size of the resistor.
Switches: If the circuit is broken at any point, no current will flow.
Adding Globes: Brightness of lamps decreases as lamps are added
Current: Current is the same throughout the series circuit
Voltage: Voltage is shared, voltage of globes should add up to the voltage of the battery
Ohm's Law: V= I x R
Parallel
Voltage is the same across each component of the parallel circuit.
A parallel circuit has two or more paths for current to flow through.
Adding Globes: Brightness of lamps stays the same as lamps are added
Current: Current is shared in the parallel sections and should add up to total current when all pathways are re-joined
Voltage: Voltage is the same for all lamps in parallel
Switches: If the circuit is broken at any point, only the globe in series with the switch will turn off. Globes that still waves a complete circuit possible will remain turned on
Voltmeter
An instrument for measuring electric potential in volts
Power Pack
the power source provides the voltage and current to energise a device attached to the circuit.
Light
A device attached to an electrical circuit that is activated by the flow of electricity to it.
Battery
the power source provides the voltage and current to energise a device attached to the circuit.
Resistor
An electronic component that limits the amount of current through it
Ammeter
An instrument used to measure the current in a circuit in amps
Switch
The switch provides the control that closes or opens the electrical energy flow on the circuit.
Wire
The conductor interconnects all of the other parts of the circuit.
Current
In formulas, current is represented by I
Current is measured in amperes (amps)
Current is the flow of electric charge.
Current is measured by the number of charged particles that move past a particular point every second. The more charged particles, the higher the current
Voltage and current increase and decrease at the same rate
Current and resistance is inversely related
Resistance
A resistor is an electronic component that limits the amount of current through it
Resistors are used in circuits to control the amount of current
Resistance is measured in ohms.
As the resistance increases, the current decrease
Current and resistance is inversely related
In formulas, resistance is represented by R
Voltage
Voltage of a source, such as a battery, measures the energy it supplies to charges particles in the circuit
In formulas, voltage is represented by V
Voltage across a resistor measures the energy lost by the charged particles
Voltage is expressed in volts (V)
Voltage and current increase and decrease at the same rate
Voltage and current are directly proportional
