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WorksheetsCircuits Final Review
Total questions: 15
Worksheet time: 11mins
Which resistors are in parallel?
(Mark all that apply)
R1
R2
R3
R4
R5
What happens in a parallel circuit when you add a resistor in parallel?
(Mark all that apply)
Total resistance goes up
Total resistance goes down
Total current goes up
Total current goes down
Kirchhoff's Current Law says what for a point in a circuit?
Current in > Current out
Current in < Current out
Current through a circuit = 0
Current in = Current out
A resistor opens in a parallel circuit. What will happen to the total current?
Increase
Decrease
Stay the same
Go to zero
What is current 4 (I4)?
9 mA
10 mA
1 mA
3 mA
You need to solve this circuit to find the current going through resistor 4. What is the first step you would do to solve this?
Find the total current
Find the total resistance
Find the total voltage
Find the total power
In a balanced Wheatstone Bridge, Vout = ?
0
V1
V2
Vin
In this circuit, R3 is increased. What happens?
(Mark all that apply)
Total voltage goes down
Total current goes down
Total resistance goes up
Voltage across R1 goes down
Draw where you connect voltmeter probes to measure the load voltage.
The temperature is 25 degrees C. What would the resistance be?
17 Ω
25 Ω
25,000 Ω
15,000 Ω
You measure the voltage of a 25 k Ohm resistor. Which voltmeter internal resistance would be the best for getting an accurate measurement?
10 kΩ
25 kΩ
100 kΩ
10 MΩ
For resistors in parallel, what is the same?
Voltage drop
Current through
Power dissipated
Charge held
What determines if a circuit is series or parallel?
The wire colors
The current paths
The voltage supply
The resistor values
You have a parallel circuit with a light in each branch. The light in one branch goes out. What happens to the other lights?
They go out also
They flicker frequently
They explode
They remain on
You are solving a series-parallel circuit. What do you want to do first?
Combine all resistors to one parallel circuit
Combine all resistors to one series circuit
Combine all currents to one battery
Combine all voltages to one parallel circuit
