Paper 2: Ohm’s Law Flashcards
1
Q
What does ohm law state?
A
How the current through a component relates to its resistance and potential different across it
2
Q
What is the resistance of a component?
A
A way of measuring how hard it is for electricity to flow through it
3
Q
What does the resistance of a whole circuit depend on?
A
The resistance of the different components in the circuit
4
Q
If the total resistance is high, what is the current?
A
Small
5
Q
How can the resistance of a circuit be changed?
A
Putting different resistors into the circuit or by using a variable resistor
6
Q
What is the equation for ohms law?
A
Potential difference = current x resistance
