What is the total voltage in a series circuit?
The highest voltage
The average voltage
The same as the lowest voltage
The sum of all individual voltages
Which circuit type is commonly used in household wiring?
Parallel circuit
None of the others
Both equally
Series circuit
In a parallel circuit, which statement is true about the voltage across each component?
It is always zero
It is the sum of the voltages
It is the same for all components
It varies depending on resistance
If a 12V battery is connected to two 6Ω resistors in series, what is the total current flowing through the circuit?
0.5A
2A
1A
3A
What happens to the total current in a parallel circuit as more branches are added?
Total current stays the same
Total current decreases
Total current becomes 0
Total current increases
What is the main characteristic of a series circuit?
Components can be disconnected without affecting others
Current is the same throughout
Voltage is the same across all components
Components are connected side by side
What is the role of a fuse in an electrical circuit?
To limit current and protect the circuit
To connect components
To increase voltage
To store energy
What happens to the total current in a series circuit if you add more resistors?
It stays the same
It fluctuates
It decreases
It increases
Which circuit configuration is best for ensuring that devices operate independently?
Mixed circuit
Open circuit
Series circuit
Parallel circuit
How do you calculate the total resistance in a series circuit?
Add all resistances together
Use Ohm's Law
Take the average of the resistances
Use the formula 1 / 𝑅 𝑡 𝑜 𝑡 𝑎 𝑙 = 1 / 𝑅 1 + 1 / 𝑅 2
What is the total current in a parallel circuit if each branch has a different resistance?
The same current flows through each branch
Total current is the average of all branch currents
Total current is the sum of currents in each branch
Total current depends on the total resistance only
In a parallel circuit, if one component fails, what happens to the rest of the circuit?
Current stops flowing
All components fail
Voltage increases
Only the failed component is affected
If three resistors (10Ω, 20Ω, and 30Ω) are connected in series, what is the total resistance?
1/60Ω
30Ω
60Ω
10Ω