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MCQs

Total Questions : 118 | Page 7 of 12 pages
Question 61.  What resistor type is found in SIPs and DIPs?
  1.    metal film
  2.    wirewound
  3.    metal oxide
  4.    thick film
 Discuss Question
Answer: Option D. -> thick film
Question 62.  With Ohm's law, if voltage increases and resistance stays the same:
  1.    current remains the same
  2.    power decreases
  3.    current increases
  4.    resistance decreases
 Discuss Question
Answer: Option C. -> current increases
Question 63.  Which formula shows a direct proportionality between power and voltage?
  1.    V = IR
  2.    P = VI
  3.    P = IR
  4.    I = V/R
 Discuss Question
Answer: Option B. -> P = VI
Question 64.  How many connections does a potentiometer have?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
Question 65. . With Ohm's law:
  1.    current is inversely proportional to resistance
  2.    resistance is directly proportional to voltage
  3.    voltage is indirectly proportional to power
  4.    current is directly proportional to resistance
 Discuss Question
Answer: Option A. -> current is inversely proportional to resistance
Question 66.  The six basic forms of energy are:
  1.    light, sun, magnetic, chemical, electrical, and mechanical
  2.    electrical, mechanical, light, heat, magnetic, and chemical
  3.    electrical, mechanical, sun, heat, chemical, and light
  4.    potential, sun, light, chemical, electrical, and mechanical
 Discuss Question
Answer: Option B. -> electrical, mechanical, light, heat, magnetic, and chemical
Question 67. . How much energy is stored if 6.24 x 1018 electrons are stored in 4 volts?
  1.    4 joules
  2.    1.56 x 1018 electrons
  3.    1.56 coulombs
  4.    2.496 x 1019 electrons
 Discuss Question
Answer: Option A. -> 4 joules
Question 68. . What is the most commonly used conductor in electronics?
  1.    aluminum
  2.    copper
  3.    gold
  4.    silver
 Discuss Question
Answer: Option B. -> copper
Question 69. . Power is defined as:
  1.    the rate at which energy is used
  2.    watts
  3.    energy
  4.    the rate at which energy is generated
 Discuss Question
Answer: Option A. -> the rate at which energy is used
Question 70. . With Ohm's law, no change in resistance means that current and voltage will be:
  1.    directly proportional
  2.    unable to produce energy
  3.    the same
  4.    inversely proportional
 Discuss Question
Answer: Option A. -> directly proportional

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