Discussion
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- Question
Which of the following statements is true?
Options- A. Unlike charges repel and like charges attract.
- B. Like charges repel and unlike charges attract.
- C. Unlike charges attract and like charges attract.
- D. Like charges repel and unlike charges repel.
- Correct Answer
- Like charges repel and unlike charges attract.
- 1. Which electronics material opposes the movement of free electrons?
Options- A. Conductor
- B. Insulator
- C. Semiconductor
- D. Element Discuss
- 2. A short circuit will have:
Options- A. a small current flow
- B. a large current flow
- C. no current flow
- D. some current flow Discuss
- 3. The removal of a non-neutral subatomic particle converts the atom into a:
Options- A. charged ion
- B. nucleus
- C. heavier element
- D. compound Discuss
- 4. The charge of one coulomb is equal to:
Options- A. 6.24 x 10?18 electrons
- B. one ampere
- C. one second
- D. 6.24 x 1018 electrons Discuss
- 5. Which is the smallest?
Options- A. atom
- B. proton
- C. neutron
- D. electron Discuss
- 6. If the current in a circuit equals 0 A, it is likely that the
Options- A. voltage is too high
- B. resistance is too low
- C. circuit has a short
- D. circuit is open Discuss
- 7. What is a characteristic of a secondary cell?
Options- A. rechargeability
- B. not rechargeable
- C. a dry cell
- D. non-liquid Discuss
- 8. How many valence shell electrons are there in semiconductor atoms?
Options- A. 16
- B. 8
- C. 4
- D. 2 Discuss
- 9. An example of potential energy is:
Options- A. tea-kettle steam
- B. a moving vehicle
- C. the sun
- D. a battery Discuss
- 10. When considering conventional current versus electron current flow:
Options- A. electron current flow came first
- B. protons move in conventional current flow
- C. conventional current flow came first
- D. the direction of current is the same in both methods Discuss
Voltage and Current problems
Search Results
Correct Answer: Insulator
Correct Answer: a large current flow
Correct Answer: charged ion
Correct Answer: 6.24 x 1018 electrons
Correct Answer: electron
Correct Answer: circuit is open
Correct Answer: rechargeability
Correct Answer: 4
Correct Answer: a battery
Correct Answer: conventional current flow came first
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