Physics - Circuits Flashcards
What kind of circuit is shown here, series or parellel?
Series
How does current vary in a series circuit?
The current is the same everywhere in a series circuit. It does not matter where you put the ammeter, it will give you the same reading.
What happens if one of the bulbs break in this series circuit?
The circuit will be broken and all the components stop working.
Wires are usually coated in plastic because?
Plastic is a good insulator of electricity
What happens to the current in a circuit if a bigger battery is used?
The current will increase
Wires are normally made from copper. This is because…
Copper is a very good conductor of electricity
Add a cell or batter AND close the switch
It will stay lit
An ammeter should always be connected in series
What device is used to measure the potential difference in a circuit and how should it be connected?
A voltmeter and it should be connected in parallel
They will read the same
What happens to a bulb connected to a battery when the potential difference is increased?
The bulb will get brighter.
Which has a greater resistance: a thick or a thin wire?
A thin wire.
Which one of these shows a resistor?
The one on the left
Why are fuses useful?
They protect electrical circuits and appliances
