P2 Electricity Flashcards
For a electric charge does it require a closed circuit for the electricity to flow
Yes it requires a closed circuit
What is potential difference meaning in a circuit
It is the driving that pushes the charge around
What is the meaning of resistance in a circuit
It means to slow down the flow
What does the current depend when flowing through a component
It depends on the potential difference
Is it true that the the greater the resistance the smaller the current that flows
True
Is it true the size of the current is the rate of flow of charge
True
What factors can affect the resistance of a circuit
Whether components are in a series or a parallel and the length of the wire
What is an ammeter
It measure current(in amps)
What type of circuit is an ammeter
It is a series circuit
What is a voltmeter
It measures potential difference (in volts)
Do ohmic conductors have a constant resistance
Yes they have a constant resistance
Does the resistance if of a ohmic conductor affect the charge with the current
No
At a constant temperature is the current flowing through a ohmic conductor conductor directly proportional to the potential difference
Yes it is directly proportional to the potential difference
Do certain components and resistor change in resistance
Yes
Name example of components and resistors that change in resistance
Diode and filament lamps
