Ch.8.6 Flashcards
What are the two ways to connect two light bulbs in a circuit?
A series and a parallel circuit.
Describe a series circuit.
The circuit components are connected one after the other to form a single-path circuit.
How do we describe two light bulbs in a series circuit?
We can say that they are _____________________________.
connected in series
Describe a parallel circuit.
The circuit components are connected in a circuit with branches.
How do we describe two light bulbs in a parallel circuit?
We can say that they are _____________________________.
connected in parallel
In a series circuit of two light bulbs, when one bulb is removed, _______________________________________. Why? What will happen if the circuit is open at any point?
the other goes out
This is because there is only one path for the current to flow through.
The circuit will be incomplete; no current will flow and the bulb will not light up.
In a parallel circuit of two bulbs, when one bulb is removed, _______________________________________. Why? What will happen if one of the branches is open?
the other can still light up
This is because there is more than one branch for current to flow through in a parallel circuit.
The current can still flow through the other branch; therefore, the bulb in the remaining closed branch will still light up.
Why are parallel circuits useful? Name an example of an application of parallel circuits.
This is because the device in each branch operates independently. The electrical appliances in our homes are connected in parallel.
In series circuits, the currents are _______________________ at different points of the circuit. Why?
the same
This is because in a series circuit, there is only one path fro current to flow through and the same current flows through all points of the circuit.
In a series circuit, the voltage across each lightbulb and the voltage across the electric cells are _______________________.
not equal
———[]|————
|_______∩⃝________|
Lm=L1+L2
In a parallel circuit, the current in the ________________________ _____________ when it _______________________________. Part of the current _________________________________ and the rest _________________________________.
main loop, splits, flows into the branches, flows through one branch, flows through the other branch
In parallel circuits, the size of the current in each branch depends on _________________________________. The branch with a ____________________________ has a _____________________________.
the resistance of the branch, lower resistance, larger current
The voltage in each branch of a parallel circuit is _________________________. It is also _________________ the voltage across the _________________________.
the same, equal to, electric cells
