Voltage, Current and Resistance problems
- 1. If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?
Options- A. 10.5 C
- B. 105 C
- C. 3.4 C
- D. 34 C Discuss
Correct Answer: 10.5 C
- 2. A wiper is the sliding contact in a
Options- A. switch
- B. photoconductive cell
- C. thermistor
- D. potentiometer Discuss
Correct Answer: potentiometer
- 3. When placed close together, two positively charged materials will
Options- A. attract
- B. become neutral
- C. become negative
- D. repel Discuss
Correct Answer: repel
- 4. An ohmmeter is an instrument for measuring
Options- A. current
- B. voltage
- C. resistance
- D. wattage Discuss
Correct Answer: resistance
- 5. The unit of electrical charge is the
Options- A. volt
- B. ampere
- C. joule
- D. coulomb Discuss
Correct Answer: coulomb
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