In the International System, what is the unit of measurement of energy?
joules (J)
In the International System, what is the unit of measurement for electrical power?
watts (W)
What do we call the phenomenon where a small amount of unwanted electrical energy is always consumed by elements in a circuit?
The Joules effect
How do we calculate power (P)?
By multiplying the voltage of each component by the current that flows through it. P = V.I
What type of circuit can we see in the picture?
A series circuit
What type of circuit can we see in the picture?
A parallel circuit
What type of circuit can we see in the picture?
A series-parallel combination circuit
In a series circuit, what is the equivalent resistance equal to?
The sum of all resistances in the circuit.
In a parallel circuit, what is the inverse of the equivalent resistance equal to?
The sum of the inverses of all resistances in the circuit
What happens to the brightness of lightbulbs in a series circuit when you add more?
They get dimmer
What happens to the brightness of lightbulbs in a parallel circuit when you add more?
They stay the same
