Wednesday, 21 September 2022

MAGNETIC EFFECT OF CURRENT: MCQ ON GALVANOMETER, VOLTMETER, AMMETER

 

Q1 To convert galvanometer into voltmeter which one is connected with the coil

  • a). High resistance wire in series 
  • b). Low resistance wire in parallel
  • c). High resistance wire in parallel 
  • d). Low resistance wire in series

  • a). High resistance wire in series 

Q2 The sensitivity of a moving coil galvanometer can be increased by decreasing

  • a). Number of turns in coil 
  • b). length of coil
  • c). Magnetic field 
  • d). couple per unit twist of the suspension

  • d). couple per unit twist of the suspension

Q3  Moving coil galvanometer is used for the measurement of

  • a). Very small electric current 
  • b). Large electric current
  • c). Speed 
  • d). Angle

  • a). Very small electric current 

Q4 The galvanometer is said to be  sensitive  if 

  • (a)  it gives large deflection even a small current is passed through it
  • (b) it gives small deflection when large current is passed through it
  • (c) it gives large deflection even for zero current is passed through it
  • (d) None of these 

  • (a)  it gives large deflection even a small current is passed through it

Q5 The sensitivity of moving coil galvanometer can be increased by decreasing magnetic field.

  • (a) True
  • (b) False

  • (b) False


Q6 A cyclotron can be used to produced high energy

  • (a) neutrons 
  • (b) deuterons
  • (c) α particles 
  • (d) β particles

  • (c) α particles 

Q7  The angular frequency of a cyclotron is independent of

  • (a) speed 
  • (b)mass
  • (c) magnetic field 
  • (d) charge


  • (a) speed 

Q8 The range of a voltmeter can be 

  • (a) Increased 
  • (b) decreased
  • (c) None of these
  • (d) Both (a) and (b)

  • (d) Both (a) and (b)

Q9.  A stationary charge experience no magnetic Lorentz force. (T/F)

  • a) True
  • d) False 

  • (a) True 

Q10 To convert galvanometer into ammeter which one is connected with the coil

  • a) High resistance wire in series 
  • b) Low resistance wire in parallel
  • c) High resistance wire in parallel
  • d) Low resistance wire in series

  • b) Low resistance wire in parallel

  

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