Topic 2.1-2.7 Electrical circuits Flashcards
What happens to the potential difference of the battery in series circuits
its shared across all components
What happens to the current in series circuits
it stays the same through out
in series circuits the total resistance is ________ the resistance of all the components
equal to
In a series circuit, components with a greater resistance will always have a ________ share of the voltage
greater
What happens to the potential difference of the battery in a parallel circuit
all the components have the same potential difference
What happens to the current in parallel circuits
the total current is shared between the branches of the circuit
Adding a resistor in parallel with an existing resistor will ________ the overall resistance.
explain why
decrease
adding another resistor in parallel adds another loop, even if that resistance is higher there are still more options for the current to take so less resistance
What are the 2 equations for power in a circuit
P=IV
power= current x potential difference
P=I^2R
power= current squared x resistance
What are the 2 equations for energy in a circuit
E=QV
Energy= charge flow x potential difference
E=Pt
energy= power x time
What is the equation for potential difference
V=IR
potential difference= current x resistance
