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MCQs

Total Questions : 163 | Page 14 of 17 pages
Question 131. . The ___ rating of a resistor will increase with an increase in the surface area of the resistor.
  1.    resistance
  2.    current
  3.    power
  4.    voltage
 Discuss Question
Answer: Option C. -> power
Question 132. . The voltage across a 2.2 komega.gif resistor is ___ if 3 mA of current is flowing through it.
  1.    6.6 V
  2.    7.33 V
  3.    1.4 V
  4.    0.8 V
 Discuss Question
Answer: Option A. -> 6.6 V
Question 133. . The number of joules used in 1 second is always equal to the number of _______.
  1.    siemens
  2.    coulombs
  3.    amperes
  4.    watts
 Discuss Question
Answer: Option D. -> watts
Question 134. . The current is ___ if the voltage across a 5 komega.gif resistor is 25 V.
  1.    200 mA
  2.    125 mA
  3.    75 mA
  4.    5 mA
 Discuss Question
Answer: Option D. -> 5 mA
Question 135. . Resistance and current are _________.
  1.    directly proportional
  2.    inversely proportional
  3.    not related
  4.    similar to voltage
 Discuss Question
Answer: Option B. -> inversely proportional
Question 136. . ___ is a better way of expressing 7,500,000 W.
  1.    7.5 kW
  2.    7,500 MW
  3.    7,500 GW
  4.    7.5 MW
 Discuss Question
Answer: Option D. -> 7.5 MW
Question 137. . An ideal operational amplifier has
  1.    infinite output impedance
  2.    zero input impedance
  3.    infinite bandwidth
  4.    All of the above
 Discuss Question
Answer: Option C. -> infinite bandwidth
Question 138. . The open-loop voltage gain (Aol) of an op-amp is the
  1.    external voltage gain the device is capable of
  2.    internal voltage gain the device is capable of
  3.    most controlled parameter
  4.    same as Acl
 Discuss Question
Answer: Option B. -> internal voltage gain the device is capable of
Question 139. . Another name for a unity gain amplifier is:
  1.    difference amplifier
  2.    comparator
  3.    single ended
  4.    voltage follower
 Discuss Question
Answer: Option D. -> voltage follower
Question 140. . A series dissipative regulator is an example of a:
  1.    linear regulator
  2.    switching regulator
  3.    shunt regulator
  4.    dc-to-dc converter
 Discuss Question
Answer: Option A. -> linear regulator

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