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Resistance and Power problems
1. What current is flowing in the circuit?
Options
A. 288 kA
B. 2 kA
C. 50 mA
D. 500 µA
Show Answer
Scratch Pad
Discuss
Correct Answer: 500 µA
2. What are the two major categories for resistors?
Options
A. low and high ohmic value
B. commercial and industrial
C. low and high power value
D. fixed and variable
Show Answer
Scratch Pad
Discuss
Correct Answer: fixed and variable
3. Resistance is:
Options
A. the opposition to current flow accompanied by the dissipation of heat
B. symbolized by R, measured in ohms, and directly proportional to conductance
C. directly proportional to current and voltage
D. represented by the flow of fluid in the fluid circuit
Show Answer
Scratch Pad
Discuss
Correct Answer: the opposition to current flow accompanied by the dissipation of heat
4. What value of a
1.3 kΩ resistor as measured by a digital voltmeter would be considered within tolerance?
Options
A. 1234 Ω
B. 1235 Ω
C. 1366 Ω
D. 1367 Ω
Show Answer
Scratch Pad
Discuss
Correct Answer: 1235 Ω
5. Resistance in a circuit is:
Options
A. opposition to current
B. opposition to voltage
C. the same as current
D. the same as voltage
Show Answer
Scratch Pad
Discuss
Correct Answer: opposition to current
6. Power is measured in units of:
Options
A. joules x charge
B. joules/work
C. joules x voltage
D. joules/time
Show Answer
Scratch Pad
Discuss
Correct Answer: joules/time
7. The source is 24 volts and the load resistance is 100 Ω. What is the load current?
Options
A. 2.4 A
B. 240 mA
C. 24 mA
D. 2.4 mA
Show Answer
Scratch Pad
Discuss
Correct Answer: 240 mA
8. Which type of test equipment is used to measure resistors?
Options
A. ohmmeter
B. ammeter
C. voltmeter
D. watt meter
Show Answer
Scratch Pad
Discuss
Correct Answer: ohmmeter
9. How is a 3.9 kΩ resistor color-coded?
Options
A. red, white, red, gold
B. red, green, orange, silver
C. orange, white, red, gold
D. orange, green, orange, silver
Show Answer
Scratch Pad
Discuss
Correct Answer: orange, white, red, gold
10. How much energy is stored if 6.24 x 10
18
electrons are stored in 4 volts?
Options
A. 4 joules
B. 1.56 x 10
18
electrons
C. 1.56 coulombs
D. 2.496 x 10
19
electrons
Show Answer
Scratch Pad
Discuss
Correct Answer: 4 joules
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More in Electronics:
Alternating Current and Voltage
Alternating Current vs Direct Current
Analog and Digital Converters
Analog to Digital
Arithmetic Operations and Circuits
Basic Op-Amp Circuits
Bipolar Junction Transistors (BJT)
Capacitors
Combinational Logic Circuits
Computer Hardware and Software
Diodes and Applications
Field Effect Transistors (FET)
Flip-Flops and Timers
Inductors
Logic Circuit Simplification
Logic Gates
Magnetism and Electromagnetism
Measurement, Conversion and Control
Number Systems and Codes
Ohm's Law
Operational Amplifiers
Parallel Circuits
Programmable Logic Devices (PLD)
Quantities and Units
RC Circuits
Resistance and Power
RL Circuits
RLC Circuits and Resonance
Semiconductor Memory
Semiconductor Principles
Sequential Logic Circuits
Series-Parallel Circuits
Series Circuits
Special-Purpose Op-Amp Circuits
Standard Logic Devices (SLD)
Testing and Troubleshooting
Thyristors and Tranducers
Time Response of Reactive Circuits
Transformers
Transistors and Applications
Voltage and Current
1.3 kΩ resistor as measured by a digital voltmeter would be considered within tolerance?