P2, Electrical Circuits

HideShow resource information
  • Created by: emmajane_
  • Created on: 13-04-14 11:51
What is Potential difference and what i sit measured in?
It is the amount of joules per column of charge. Measured in volts (V)
1 of 11
What is current and what is it measured in?
Current is the amount of charge per second passing a point in the circuit. Measured in amps (I)
2 of 11
What is resistance and what is it measured in?
It is the ratio of potential difference across a component to the current flowing through it. Measured in Ohms
3 of 11
What is current directly proportional to?
Potential difference
4 of 11
What happens if you the double potential differene in a circuit?
The current also doubles, but the resistance remains the same
5 of 11
What should you get if you plot a graph of potential difference and current?
You should get a straight line passing through the origin (0,0)
6 of 11
What is Ohms law?
"The electrical current in a conductor is proportional to the potential difference applied to it, provided the temperature stays the same"
7 of 11
What is the equation for Ohms law?
Potential difference= current x resistance
8 of 11
What is current measured by in a circuit?
Measured by an ammeter, which is connected to a series
9 of 11
What is Potential difference measured by in a circuit?
Measured using a voltmeter, which is connected in parallel
10 of 11
What does measuring the current and potential difference allow you to do?
Calculate the resistance
11 of 11

Other cards in this set

Card 2

Front

What is current and what is it measured in?

Back

Current is the amount of charge per second passing a point in the circuit. Measured in amps (I)

Card 3

Front

What is resistance and what is it measured in?

Back

Preview of the front of card 3

Card 4

Front

What is current directly proportional to?

Back

Preview of the front of card 4

Card 5

Front

What happens if you the double potential differene in a circuit?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Electricity resources »