Voltage and Current Questions and Answers

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Q31
 An element is a substance that is:
  • A varied throughout the entire piece
  • B used only in electronics
  • C electrically charged
  • D found only in its pure form
Answer: Option D
Q32
Current is:
  • A the presence of a positive charge
  • B the abundance of electrons
  • C the movement of electrons
  • D the repulsion of electrons
Answer: Option C
Q33
What do you call a diagram that shows the electrical connections of a circuit's components?
  • A A schematic diagram
  • B A pictorial diagram
  • C A block diagram
  • D An electrical diagram
Answer: Option A
Q34
A short circuit will have:
  • A a small current flow
  • B a large current flow
  • C no current flow
  • D some current flow
Answer: Option B
Q35
The basic difference between a fuse and a circuit breaker is
  • A a fuse is slower
  • B a fuse is reusable
  • C a circuit breaker is reusable
  • D a circuit breaker is more reliable
Answer: Option C
Q36
Which is the smallest?
  • A atom
  • B proton
  • C neutron
  • D electron
Answer: Option D
Q37
A secondary cell generates dc via chemical activity; a primary cell generates dc:
  • A electrically
  • B thermally
  • C optically
  • D chemically
Answer: Option D
Q38
Which of the following statements is true?
  • 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.
Answer: Option B
Q39
if an electrical system is compared to a fluid system, the electrical current corresponds to the:
  • A pressure
  • B pump
  • C water wheel
  • D water flow
Answer: Option D

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