Electricity Flashcards
How many loops does a series circuit have
1 loop
What is shared between all components in a series circuit
The potential difference
What is the same throughout a series circuit
The current
What is the same in a parallel circuit
The potential difference
What is shared throughout a parallel circuit
The current
What happens to current loop in a parallel circuit when the resistance is greater
The loops take a lower share of the current
What happens to the amount of resistance in a parallel circuit when more loops/components are added
The total resistance is lower the more components
Define current (I)
Rate of flow of charge through a conductor ( Amps )
Define Voltage/potential difference (V)
Measure of the amount of energy which the charge is carrying (volts)
Define resistance (R)
The property of a component that resists or opposes the flow of electrons (ohms)
What is the flow of a current and the name
Positive to negative- conventional current
Role of a live wire
Provides alternating currents
Role of a neutral wire
Completes a circuit by carrying away current
Role of an earth wire
Stops the appliance casing from becoming live
Direct current (DC)
Current only flows in 1 direction
Alternating current (AC)
Voltage and current change size and direction
