Term 3: Electricity Flashcards
Ohm’s Law
A law that states the V=IR I=V/R R= V/I
Current
The actual rate of electricity passing through
Voltage
The electrical potential energy that the electrons are carrying.
Resistance
Used to reduce the speed of the current so as to ensure that neither the component nor the wire is damaged by the movement of electrons though too thin a space.
Volt
Used to measure voltage
Ampere
Used to measure current
Series Circuit
All components share the same current. One straight line.
Parallel Circuit
All components share the same voltage. It splits off into different parts from the point. The reason why the current is reduced (and by extension the resistance) is because it is given more options through which it can move more quickly through the circuit by dividing the amount of electrons so that they go thought the different passages.
Power=
Voltage X Current
Ohm
A measure of resistance
Conventional current
assumes that electricity flows from the positive side of the cell or battery to the negative side. This was proposed before scientists knew about electrons moving through the wires and is NOT WHAT IS ACTUALLY HAPPENING! Unfortunately, this term is still used…
Electron flow
describes the movement of electrons from the negative side of the cell or battery to the positive side. THIS IS WHAT IS ACTUALLY HAPPENING…
If two bulbs were present on a parallel circuit would the bulbs be brighter or darker than a parallel circuit.
They would be brighter, in fact they would be as bright a single bulb being hooked up to a battery. While a series circuit would be half as bright.
Volt Drop
The way a voltmeter measures the voltage by identifying the difference in voltage between two points.
