Definitions Flashcards
What is potential difference?
As the work done per unit positive charge.
What is current?
As the rate of flow of charge.
what is the unit for the charge?
A coulomb.
The coulomb is a certain number of ____.
Electrons
Electrical energy is measured in ___ (J).
Joules
What is power?
The rate of doing work.
What is Ohm’s Law?
Current through a conductor is directly proportional to the potential difference across the conductor at a constant temperature.
What is resistance?
As a material’s opposition to the flow of electric current
What is the unit for resistance?
The unit of resistance is the ohm
True or false
Current is the same at various points in a series circuit
True
Calculate the effective resistance of resistors in series using…
RT = R1 + R2
Calculate the effective resistance of resistors in parallel using…
1/RT=1/R1+1/R2
The sum of the current in each branch of a ____ connection equals the total current.
Parallel
The formula for Ohm’s Law:
R =V/I
