Discussion
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- Question
How many connections does a rheostat have?
Options- A. 1
- B. 2
- C. 3
- D. 4
- Correct Answer
- 2
- 1. With a complex circuit, a supply source senses:
Options- A. open circuit components
- B. when voltages need to be increased
- C. only a single resistive connection
- D. when complex currents are needed Discuss
- 2. How many joules of energy will a 10 W lamp dissipate in one minute?
Options- A. 10 joules
- B. 60 joules
- C. 600 joules
- D. 3600 joules Discuss
- 3. How many amps are used by a 100 watt, 120 volt light bulb?
Options- A. 1.2 amps
- B. 12000 amps
- C. 830 mA
- D. 12 amps Discuss
- 4. A color code of orange, orange, orange is for what ohmic value?
Options- A. 22 kilohms
- B. 3300 ohms
- C. 44000 ohms
- D. 33 kilohms Discuss
- 5. Resistors are identified as to wattage by:
Options- A. size
- B. color code
- C. types of materials
- D. internal construction Discuss
- 6. A good fuse will have:
Options- A. zero ohms resistance
- B. a medium resistance
- C. a high resistance
- D. an infinite resistance Discuss
- 7. What are the parts of a rheostat?
Options- A. wiper and resistor track
- B. solenoid and armature
- C. contact and wire wound
- D. center tape and wiper Discuss
- 8. One ampere of current flowing through one ohm of resistance is equal to:
Options- A. 1 horsepower
- B. 1 Btu
- C. 1 watt
- D. 1 joule Discuss
- 9. What is the power dissipated by a 1.2 kΩ resistor with 12 volts across it?
Options- A. 12 W
- B. 1.2 W
- C. .12 W
- D. 12 mW Discuss
- 10. What happens to current and resistance if the voltage doubles?
Options- A. Current doubles and resistance doubles.
- B. Current doubles and resistance is halved.
- C. Current remains the same and resistance doubles.
- D. Current doubles and resistance remains the same. Discuss
Resistance and Power problems
Search Results
Correct Answer: only a single resistive connection
Correct Answer: 600 joules
Correct Answer: 830 mA
Correct Answer: 33 kilohms
Correct Answer: size
Correct Answer: zero ohms resistance
Correct Answer: wiper and resistor track
Correct Answer: 1 watt
Correct Answer: .12 W
Correct Answer: Current doubles and resistance remains the same.
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