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PHYSICS MCQs

Total Questions : 3767 | Page 371 of 377 pages
Question 3701. The metal used to make lightning conductors is
  1.    Aluminium
  2.    Copper
  3.    Zinc
  4.    Iron
 Discuss Question
Answer: Option B. -> Copper
Question 3702. One Kilowatt hour is equal to -
  1.    3.8 Mega Joule
  2.    3.6 Mega Joule
  3.    3.2 Mega Joule
  4.    4.0 Mega Joule
 Discuss Question
Answer: Option B. -> 3.6 Mega Joule
Question 3703. Which of the following is a conductor of electricity ?
  1.    Rubber
  2.    Salt water
  3.    Benzene
  4.    Pure water
 Discuss Question
Answer: Option B. -> Salt water
Question 3704. The metal whose electrical conductivity is more, is
  1.    Silver
  2.    Lead
  3.    Aluminium
  4.    Copper
 Discuss Question
Answer: Option A. -> Silver
Question 3705. A bird sitting on a high tension electric wire does not get electrocuted because
  1.    Its feet are good insulators
  2.    It has high resistance
  3.    The body is earthed
  4.    It does not form a closed path for the flow of current
 Discuss Question
Answer: Option D. -> It does not form a closed path for the flow of current
Question 3706. The fuse in our domestic electric circuit melts when there is a high rise in
  1.    Capacitance
  2.    Resistance
  3.    Inductance
  4.    Current
 Discuss Question
Answer: Option D. -> Current
Question 3707. Fuse wire is made of an alloy of
  1.    Lead and Copper
  2.    Tin and Copper
  3.    Copper and Silver
  4.    Tin and Lead
 Discuss Question
Answer: Option D. -> Tin and Lead
Question 3708. In the electrical circuit of a house, the fuse acts as
  1.    A load
  2.    A thermopile
  3.    A safety device
  4.    A step down device
 Discuss Question
Answer: Option C. -> A safety device
Question 3709. Which of these is exhibiting kinetic energy?
  1.    All of these
  2.    An archer with a flexed bow
  3.    A space station orbiting Earth
  4.    A person sitting on a couch while watching TV
 Discuss Question
Answer: Option C. -> A space station orbiting Earth
Question 3710. An object having the capability to do work is said to possess
  1.    Energy
  2.    Inertia
  3.    Pressure
  4.    Force
 Discuss Question
Answer: Option A. -> Energy

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