What needs to be reversed in order to reverse the direction of induced current?

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Question:
What needs to be reversed in order to reverse the direction of induced current?

1.Direction of magnetic field

2.Direction of current

3.Direction of force

4. All of the above

Posted Date:-2021-03-15 04:40:29

More MCQS Questions and answers

  1. An electromagnet consists of a long coil of insulated copper wire wound on a soft:
  2. At what time interval does the alternating current produced in India reverse its direction?
  3.  Magnitude of current induced in the coil can be increased by increasing:
  4.  The direction of deflection of a current-carrying conductor indicates the direction of:
  5.  The production of electric current by moving a magnet inside a fixed coil of wire is a case of:
  6.  What is the frequency of alternating current produced in India?
  7.  Which metal wire is used in the coil of the motor used commercially?
  8.  Which of the following are sources of direct current?
  9. If the current reverses direction after equal intervals of time, it is called:
  10. In an electric motor, which device reverses the direction of current through a circuit?
  11. In generators, the voltage produced can be increased by:
  12. In which of the following devices is the electrical motor used?
  13. What is a long coil containing a large number of close turns of insulated copper wire called?
  14. On what does the strength of magnetic field produced by a current carrying solenoid depend?
  15. Strong permanent magnets are used in:
  16. The carbon strips used to pass electric current to the coil are known:
  17. The current produced by moving a straight wire in a magnetic field is called:
  18. The magnetic field lines inside the solenoid are:
  19. The magnetic field produced by a current carrying solenoid is similar to the magnetic field produced by a:
  20. The maximum force is exerted on a current carrying conductor when it is:
  21. The process of electromagnetic induction has led to the construction of:
  22. The production of electricity from magnetism is called:
  23. What does the forefinger represent in the Fleming’s left-hand rule?
  24. What is the current flowing in one direction called?
  25. What is used to make electromagnets?
  26. What needs to be reversed in order to reverse the direction of induced current?
  27. Which are the two main organs of the human body where the magnetic field produced is significant?
  28. Which device converts electrical energy into mechanical energy?
  29. Which direction is indicated by the thumb in Fleming’s left-hand rule?
  30. Which effect of current is used in detecting concealed current-carrying conductor in a wall?
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  32. Which of the following convert’s mechanical energy into electrical energy?
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  34. Which of the following is not used for making electromagnets?
  35. Which of the following parts is not there in A.C. generator?
  36. Which of the following parts of the generators is stationary to produce electricity in large powerhouses?
  37. Which rule is applied to find the direction of force acting on the current-carrying conductor, if the direction of current and direction of magnetic field is known?
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  39. Who discovered the phenomenon of electromagnetic induction?
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