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MCQs

Total Questions : 162 | Page 16 of 17 pages
Question 151. . If a 47 omega.gif and a 68 omega.gif resistor are connected in series, the total resistance is ___.
  1.    3,196 omega.gif
  2.    less than 47 omega.gif
  3.    less than 68 omega.gif
  4.    115 omega.gif
 Discuss Question
Answer: Option D. -> 115 omega.gif
Question 152. . If five equal resistors are connected in series with a 20 V source, and a current of 400 µA is measured, each resistor equals ___.
  1.    10 komega.gif
  2.    50 komega.gif
  3.    125 omega.gif
  4.    20 omega.gif
 Discuss Question
Answer: Option A. -> 10 komega.gif
Question 153. . A voltage divider is always a _____
  1.    series-parallel circuit
  2.    series circuit
  3.    parallel circuit
  4.    bridge circuit
 Discuss Question
Answer: Option B. -> series circuit
Question 154. . The polarity on the side of the resistor where current enters is ______. The polarity on the side of the resistor where current exits is ___________.
  1.    positive, positive
  2.    negative, negative
  3.    negative, positive
  4.    positive, negative
 Discuss Question
Answer: Option C. -> negative, positive
Question 155. . –1.2 V, +15 V, and –6 V batteries are connected in series. The magnitude of total voltage is _________.
  1.    7.8 V
  2.    10.2 V
  3.    22.2 V
  4.    1.3 V
 Discuss Question
Answer: Option A. -> 7.8 V
Question 156. . If four 90 omega.gif resistors are connected in series across an 18 V source, the current equals ___.
  1.    50 mA
  2.    0.2 A
  3.    5 A
  4.    20 A
 Discuss Question
Answer: Option A. -> 50 mA
Question 157. . If a 47 omega.gif and a 68 omega.gif resistor are connected in series, the total resistance is ___.
  1.    3,196 omega.gif
  2.    less than 47 omega.gif
  3.    less than 68 omega.gif
  4.    115 omega.gif
 Discuss Question
Answer: Option D. -> 115 omega.gif
Question 158. . The polarity on the side of the resistor where current enters is ______. The polarity on the side of the resistor where current exits is ___________.
  1.    positive, positive
  2.    negative, negative
  3.    negative, positive
  4.    positive, negative
 Discuss Question
Answer: Option C. -> negative, positive
Question 159. . A voltage divider is always a _____
  1.    series-parallel circuit
  2.    series circuit
  3.    parallel circuit
  4.    bridge circuit
 Discuss Question
Answer: Option B. -> series circuit
Question 160. . If four 90 omega.gif resistors are connected in series across an 18 V source, the current equals ___.
  1.    50 mA
  2.    0.2 A
  3.    5 A
  4.    20 A
 Discuss Question
Answer: Option A. -> 50 mA

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