terms and their units. Flashcards
What is the formula for voltage?
V= E/Q
Where:
V = Voltage (volts, V)
E = Energy (joules, J)
Q = Charge (coulombs, C)
What do the terms in
V=E/Q
mean
Voltage (V): The energy per unit charge, or the potential difference between two points.
Energy (E): The total energy (in joules) available to move charges.
Charge (Q): The amount of electric charge (in coulombs, C).
hat is the formula for electrical power?
P=IV
Where:
P = Power (watts, W)
I = Current (amperes, A)
V = Voltage (volts, V)
What do the terms in
P=IV
Mean
Power (P): The rate at which energy is transferred or used (in watts).
Current (I): The flow of charge per unit time (in amperes).
Voltage (V): The potential difference or energy per unit charge (in volts).
What is another formula for power in terms of energy and time
P=E/T
Where:
P = Power (watts, W)
E = Energy (joules, J)
t = Time (seconds, s)