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MOVING COIL GALVANOMETER MCQs

Total Questions : 27 | Page 1 of 3 pages
Question 1. A linear conductor carrying current if placed parallel to the direction of magnetic field, then it experiences ---------------- force
  1.    Maximum
  2.    Zero
  3.    normal
  4.    None of these
 Discuss Question
Answer: Option B. -> Zero
Question 2. What type of current is produced in a battery
  1.    induced
  2.    magnetic
  3.    alternating
  4.    direct
 Discuss Question
Answer: Option D. -> direct
Question 3. Moving a permanent magnet through a coil of wire will
  1.    demagnetize the magnet
  2.    the wire will become an electromagnet
  3.    the magnet will become electrified
  4.    a current will be generated in the wire
 Discuss Question
Answer: Option D. -> a current will be generated in the wire
Question 4. What type of materials are needed to create an electromagnet?
  1.    battery, light bulb, plastic straw
  2.    battery, coil of wire, iron core
  3.    generator, iron core, switch
  4.    switch, source of electricity, compass
 Discuss Question
Answer: Option B. -> battery, coil of wire, iron core
Question 5. Which way will NOT increase the strength of the magnetic field of an electromagent
  1.    increasing the current
  2.    using a stronger ferromagnetic core
  3.    winding the coils closer together
  4.    decreasing the number of loops
 Discuss Question
Answer: Option D. -> decreasing the number of loops
Question 6. What makes an electromagnet different than a permanent magnet
  1.    it can be turned on and off
  2.    All of above
  3.    its strength can be increased and decreased
  4.    its polarity can be reversed
 Discuss Question
Answer: Option B. -> All of above
Question 7. Electric currents passing through wires will produce a(n)
  1.    solenoid
  2.    magnet
  3.    magnetic field
  4.    insulator
 Discuss Question
Answer: Option C. -> magnetic field
Question 8. As earth's magnetic poles move what happens to the magnetic declination of a given location
  1.    it will always remain constant
  2.    it will return to zero
  3.    it will change
  4.    it will always double
 Discuss Question
Answer: Option C. -> it will change
Question 9. What is known as the difference between the earth's magnetic pole and its geographic pole?
  1.    magnetic declination
  2.    magnetic difference
  3.    geographic decline
  4.    geographic increase
 Discuss Question
Answer: Option A. -> magnetic declination
Question 10. What would happen if I move a bar magnet in and out of a coil of copper wire?
  1.    Electric current would disappear 
  2.    The magnet would explode 
  3.    Electric current will flow through the wire
  4.    It would produce a gravitational field
 Discuss Question
Answer: Option C. -> Electric current will flow through the wire

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