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MCQs

Total Questions : 199 | Page 18 of 20 pages
Question 171. . An atom with more electrons than protons is ___.
  1.    a positive ion
  2.    a balanced atom
  3.    a negative ion
  4.    not possible
 Discuss Question
Answer: Option C. -> a negative ion
Question 172. . The ___ represents a negative charge in an atom.
  1.    electron
  2.    proton
  3.    neutron
  4.    None of the above
 Discuss Question
Answer: Option A. -> electron
Question 173. . The ___ is placed in series with the flow of current.
  1.    voltmeter
  2.    ammeter
  3.    ohmmeter
  4.    wattmeter
 Discuss Question
Answer: Option B. -> ammeter
Question 174. . All resistors can be placed into one of two main categories: ___ or ___.
  1.    carbon film, metal film
  2.    fixed, variable
  3.    wire wound, carbon-composition
  4.    insulator, semiconductor
 Discuss Question
Answer: Option B. -> fixed, variable
Question 175. . Voltage is _________.
  1.    the opposition to the flow of current
  2.    the movement of free electrons
  3.    the force that exists between charged particles
  4.    the force that causes water to flow
 Discuss Question
Answer: Option C. -> the force that exists between charged particles
Question 176. . The unit for resistance is the ___ and the symbol for resistance is ___.
  1.    ampere, R
  2.    ohm, R
  3.    volt, Q
  4.    ohm, J
 Discuss Question
Answer: Option B. -> ohm, R
Question 177. . A ___ resistor has color bands of yellow, violet, yellow, gold.
  1.    470 omega.gif 5%
  2.    5.7 Momega.gif 5%
  3.    37 komega.gif 5%
  4.    470 komega.gif 5%
 Discuss Question
Answer: Option D. -> 470 komega.gif 5%
Question 178. . All resistors can be placed into one of two main categories: ___ or ___.
  1.    carbon film, metal film
  2.    fixed, variable
  3.    wire wound, carbon-composition
  4.    insulator, semiconductor
 Discuss Question
Answer: Option B. -> fixed, variable
Question 179. . Voltage is _________.
  1.    the opposition to the flow of current
  2.    the movement of free electrons
  3.    the force that exists between charged particles
  4.    the force that causes water to flow
 Discuss Question
Answer: Option C. -> the force that exists between charged particles
Question 180. . The unit for resistance is the ___ and the symbol for resistance is ___.
  1.    ampere, R
  2.    ohm, R
  3.    volt, Q
  4.    ohm, J
 Discuss Question
Answer: Option B. -> ohm, R

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