Electricity - Paper 1 Flashcards
To revise the key points from the Electricity topic (paper 1)
Draw the circuit symbol for a lamp
an X in a circle
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/692/a_image_thumb.png?1586940644)
Draw the circuit symbol for a diode
An arrow head in a circle
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/706/a_image_thumb.png?1586940715)
Draw the circuit symbol for a resistor
A rectangular box
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/711/a_image_thumb.png?1586940771)
Draw the circuit symbol for a variable resistor
A rectangular box with a diagonal arrow
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/714/a_image_thumb.png?1586940798)
Draw the circuit symbol for an LED
Same as a diode with 2 arrows points away
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/719/a_image_thumb.png?1586940848)
Draw the circuit symbol for a fuse
A rectangular box with a horizontal one running through it
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/721/a_image_thumb.png?1586940880)
Draw the circuit symbol for a voltmeter
V in a circle
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/736/a_image_thumb.png?1586940902)
Draw the circuit symbol for an ammeter
A in a circle
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/738/a_image_thumb.png?1586940924)
Draw the circuit symbol for a thermistor
a rectangular box with a diagonal line through it
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/740/a_image_thumb.png?1586940956)
Draw the circuit symbol for an LDR
A rectangular box in a circular with 2 arrows pointing towards it
![](https://s3.amazonaws.com/brainscape-prod/system/cm/378/822/741/a_image_thumb.png?1586940985)
Define Current
Flow of charge (electrons) measured in amps (A)
State the equation that links charge, current and time.
Charge (C)= Current (A) x time (s)
Q = It
What are the units of charge
Coulombs (C)
What is the relationship between current and resistance?
They have an inverse relationship. As resistance increases, current decreases and vice versa
State the equation that links potential difference, current and resistance
Potential difference (V) = Current (A) x resistance (ohms)
V = IR