Practice Questions and Correct Answers 2026/2027
1. What is difference of electrical potential between two points called?
A. Voltage
B. Power
C. Current
D. Resistance: Voltage
2. Refer to to the figure. What is the voltage drop across R5?
A. 180 VDC
B. 10.5 VDC
C. 75 VDC
D. 20VDC: 10.5 VDC
3. What is the minimum amount of resistance that would be found on a 4.7Ḳ
ohm resistor with 20% tolerance?
A. 5640 ohms
B. 37.6 ohms
C. 56.4 ohms
D. 3760 ohms: 3760 ohms
4. Which of the following is the same across all branches of a parallel circuit.
A. Current
B. Force
C. Voltage
D. Resistance: Voltage
5. Which waveform has unequal rise and fall times with one being instanta-
neous?
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, A. Rectangle
B. Square
C. Sawtooth
D. Triangle: Sawtooth
6. Refer to the figure. What is the source voltage if the total power consumed in
this circuit is 270 milliwatts?
A. 4.86 millivolts
B. 24.81 millivolts
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