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MCQs

Total Questions : 96 | Page 7 of 10 pages
Question 61. When a 1.6 k resistor and a 120 resistor are connected in parallel, the total resistance is
  1.    greater than 1.6 k
  2.    less than 120 but greater than 100
  3.    greater than 120 but less than 1.6 k
  4.    less than 100
 Discuss Question
Answer: Option B. -> less than 120 but greater than 100
Question 62.  When parallel resistors are of three different values, which has the greatest power loss?
  1.    The smallest resistance
  2.    The largest resistance
  3.    They have the same power loss.
  4.    Voltage and resistance values are needed.
 Discuss Question
Answer: Option A. -> The smallest resistance
Question 63.  What is the product-over-sum result of 150 and 6800?
  1.    150
  2.    146.7
  3.    0.006
  4.    6800
 Discuss Question
Answer: Option B. -> 146.7
Question 64.  What is the total power loss if 2 k and 1 k parallel-connected resistors have an IT of 3 mA?
  1.    6 W
  2.    36 W
  3.    6 mW
  4.    36 mW
 Discuss Question
Answer: Option C. -> 6 mW
Question 65.  The voltage across any branch of a parallel circuit:
  1.    varies as the total current varies
  2.    is inversely proportional to total circuit resistance
  3.    is equally applied to all branch conductances
  4.    is dropped in proportion to each branch resistance
 Discuss Question
Answer: Option C. -> is equally applied to all branch conductances
Question 66.  Components that connect in parallel form:
  1.    branches
  2.    open circuits
  3.    short circuits
  4.    a voltage divider
 Discuss Question
Answer: Option A. -> branches
Question 67.  A parallel circuit differs from a series circuit in that a parallel circuit has
  1.    no path for current flow
  2.    fewer paths for current flow
  3.    one path for current flow
  4.    more than one path for current flow
 Discuss Question
Answer: Option D. -> more than one path for current flow
Question 68.  What happens to total resistance in a circuit with parallel resistors if one of them opens?
  1.    It increases.
  2.    It halves.
  3.    It remains the same.
  4.    It decreases.
 Discuss Question
Answer: Option A. -> It increases.
Question 69.  If two parallel-connected resistors dissipate 6 watts and 10 watts of power, then what is the total power loss?
  1.    3.75 watts
  2.    4 watts
  3.    16 watts
  4.    60 watts
 Discuss Question
Answer: Option C. -> 16 watts
Question 70. . What are the individual values of two parallel resistors whose RT is 8 ohms, when one has double the resistance of the other?
  1.    2.7 ohms and 5.3 ohms
  2.    8 ohms and 16 ohms
  3.    10 ohms and 20 ohms
  4.    12 ohms and 24 ohms
 Discuss Question
Answer: Option D. -> 12 ohms and 24 ohms

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