Science - Physics - Electricity Flashcards
0
Q
How is electric current measured?
A
Amps (A)
1
Q
What is electric current?
A
The measure of how much electric charge is flowing through a circuit.
2
Q
What device is used to measure electric current?
A
An ammeter
3
Q
Which 2 things are needed to make electric current flow?
A
A complete circuit
A power source (e.g. A battery)
4
Q
Define ‘voltage’.
A
A measure of the difference in electrical energy between two parts of a circuit.
5
Q
What needs to increase to make voltage increase?
A
The difference in energy between 2 parts of the circuit needs to increase.
6
Q
In what is voltage measured? What is its symbol?
A
Volts
V
7
Q
What do you use to measure voltage?
A
A voltmeter
8
Q
How can I measure the voltage across a component in a circuit?
A
Connect a voltmeter in parallel with the component.
