Circuits and charge Flashcards
Define current
The rate of flow of the charge
What is the equation Current
Current = charge/time
What is the equation for potential difference ?
V = ENERGY / CHARGE
What is the equation for electric charge
Q = I x t
What is the equation for resistance ?
R = V/I
What is current measured in ?
Amps
How many electrons make up -1c of charge ?
How many = Total / value of each
Define voltage
The measure of the energy difference each coulomb has between two points
What is energy used for ?
Used in a electrical circuit
Equation for Energy
Energy = power x Time E = P x T
Equation for power ?
W = Energy / Time
What is 1 kW = too ?
1000 W
What is the equation for energy transferred ?
J = Charge flow x potential difference
What is Ohms law ?
Ohms law states in a circuit the voltage across component is directly proportional to the current , provided temperature is constant
What is the equation for Ohms law
V = I x R