Electricity Flashcards
What is the symbol for Current?
I
What is the symbol for Potential Difference?
V
What is the symbol for Resistance?
R
What is the unit for Charge?
Coulombs (C)
What is the unit for Current?
Amperes/Amps (A)
What is the unit for Potential Difference?
Volts (V)
What is the unit for Resistance?
Ohms
What is the definition for Charge?
The imbalance of protons and electrons
What does current mean?
The flow of charge
What does potential difference mean?
A measure of the work done or transferred by each coulomb of charge.
What does resistance mean?
It’s providing an opposing force (trying to stop the current or slow it down)
What does a voltmeter do?
Measured potential difference
What does a fixed resistor do?
It limits current in a circuit
What does LED stand for?
Light Emitting Diode
2 or more cells together form a _____
Battery