Discussion
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- Question
Electrical equipment is protected against excessive current by a(n):
Options- A. fusible wire link
- B. insulated glass container
- C. metal ended coil
- D. circuit opener
- Correct Answer
- fusible wire link
- 1. With Ohm's law:
Options- A. current is inversely proportional to resistance
- B. resistance is directly proportional to voltage
- C. voltage is indirectly proportional to power
- D. current is directly proportional to resistance Discuss
- 2. The load resistance increases. How will the load current change?
Options- A. vary
- B. remain constant
- C. increase
- D. decrease Discuss
- 3. What is the most commonly used conductor in electronics?
Options- A. aluminum
- B. copper
- C. gold
- D. silver Discuss
- 4. How is power dissipated in a resistor?
Options- A. by resistance
- B. by voltage
- C. by current
- D. by heat Discuss
- 5. What is the ratio of 13 to 47 expressed in percent?
Options- A. 2.76%
- B. 27.7%
- C. 3.60%
- D. 36.1% Discuss
- 6. If resistance decreases, then current will:
Options- A. decrease
- B. increase
- C. remain the same
- D. double Discuss
- 7. Wirewound resistors are usually used in circuits that have:
Options- A. high current
- B. negative temperature coefficients
- C. low power
- D. high voltage Discuss
- 8. How many ohms of resistance allows a current of 720 µA to flow when 3.6 kV is applied?
Options- A. 200 nΩ
- B. 5 kΩ
- C. 200 kΩ
- D. 5 MΩ Discuss
- 9. With Ohm's law, if voltage increases and resistance stays the same:
Options- A. current remains the same
- B. power decreases
- C. current increases
- D. resistance decreases Discuss
- 10. The six basic forms of energy are:
Options- A. light, sun, magnetic, chemical, electrical, and mechanical
- B. electrical, mechanical, light, heat, magnetic, and chemical
- C. electrical, mechanical, sun, heat, chemical, and light
- D. potential, sun, light, chemical, electrical, and mechanical Discuss
Resistance and Power problems
Search Results
Correct Answer: current is inversely proportional to resistance
Correct Answer: decrease
Correct Answer: copper
Correct Answer: by heat
Correct Answer: 27.7%
Correct Answer: increase
Correct Answer: high current
Correct Answer: 5 MΩ
Correct Answer: current increases
Correct Answer: electrical, mechanical, light, heat, magnetic, and chemical
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