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MCQs

Total Questions : 96 | Page 8 of 10 pages
Question 71. . When a parallel 5 k resistor and a 25 k resistor have a 10 V supply, what is the total power loss?
  1.    2.4 mW
  2.    3.3 mW
  3.    24 mW
  4.    33 mW
 Discuss Question
Answer: Option C. -> 24 mW
Question 72.  If a 1 k and a 2 k resistor are parallel-connected across a 12 V supply, how much current is received by the 2 k resistor?
  1.    4 mA
  2.    6 mA
  3.    8 mA
  4.    12 mA
 Discuss Question
Answer: Option B. -> 6 mA
Question 73. . In a parallel resistive circuit:
  1.    there is more than one current path between two points
  2.    the voltage applied divides between the branches
  3.    the total branch power exceeds the source power
  4.    the total circuit conductance is less than the smallest branch conductance
 Discuss Question
Answer: Option A. -> there is more than one current path between two points
Question 74. . Kirchhoff's current law for parallel circuits states that the:
  1.    sum of all branch voltages equals zero
  2.    total circuit resistance is less than the smallest branch resistor
  3.    sum of currents into a junction is equal to the difference of all the branch currents
  4.    sum of the total currents flowing out of a junction equals the sum of the total currents flowing into that junction
 Discuss Question
Answer: Option D. -> sum of the total currents flowing out of a junction equals the sum of the total currents flowing into that junction
Question 75. . If 550 mA of current leaves a node that had 250 mA entering from one branch, how much current would enter from the other?
  1.    250 mA
  2.    300 mA
  3.    550 mA
  4.    800 mA
 Discuss Question
Answer: Option B. -> 300 mA
Question 76. . A parallel circuit is also used as a divider for:
  1.    conductance
  2.    voltage
  3.    power
  4.    current
 Discuss Question
Answer: Option D. -> current
Question 77. . What procedure should be followed when troubleshooting with an ammeter or voltmeter?
  1.    Short the leads and adjust.
  2.    Check the meter’s external power supply.
  3.    Start with the highest scale and adjust down to a lower scale.
  4.    Start with the lowest scale and adjust up to a higher scale.
 Discuss Question
Answer: Option C. -> Start with the highest scale and adjust down to a lower scale.
Question 78. . Which are the better test devices used to isolate a suspected open component within a parallel circuit?
  1.    a voltmeter or an ohmmeter
  2.    neither an ammeter nor a voltmeter
  3.    a wattmeter or a voltmeter
  4.    an ammeter or an ohmmeter
 Discuss Question
Answer: Option D. -> an ammeter or an ohmmeter
Question 79. . What is the total resistance of four 1 k parallel-connected resistors?
  1.    200 ohms
  2.    250 ohms
  3.    400 ohms
  4.    4 kilohms
 Discuss Question
Answer: Option B. -> 250 ohms
Question 80. . Which is considered to be the common reference for a parallel circuit?
  1.    Voltage
  2.    Current
  3.    Power
  4.    Resistance
 Discuss Question
Answer: Option A. -> Voltage

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