MCQ
The essential difference between an AC generator and a DC generator is that,
  • A
    AC generator has an electromagnet while a DC generator has permanent magnet.
  • B
    DC generator will generate a higher voltage.
  • C
    AC generator will generate a higher voltage.
  • D
    AC generator has slip rings while the DC generator has a commutator.

Answer

  1. AC generator has slip rings while the DC generator has a commutator.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

At a given time, a house is supplied with 100A at 220V. How many 75W, 220V light bulb could be switched on in the house at the same time (if they are all connected in parallel)?
  1. 93
  2. 193
  3. 293
  4. 393
An electric motor is a device which transforms:
  1. Mechanical energy to electrical.
  2. Heat energy to electrical energy.
  3. Electrical energy to heat energy only.
  4. Electrical energy to mechanical energy.
In the figure of the human eye, the cornea is represented by the letter:
Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
Which of the following can be produced during the nuclear fission as well as nuclear fusion reactions?
  1. Protons.
  2. Deutrons.
  3. Electrons.
  4. Neutrons.
A glass prism has how many rectangular surfaces:
Which of the following can form a virtual image which is always smaller than the object?
  1. A plane mirror.
  2. A convex lens.
  3. A concave lens.
  4. A concave mirror.
The resistivity does not change if:
  1. The material is changed.
  2. The temperature is changed.
  3. The shape of the resistor is changed.
  4. Both material and temperature are changed.
Which of the following statements is incorrect regarding magnetic field lines?
  1. The direction of magnetic field at a point is taken to be the direction in which the north pole a magnetic compass needle points.
  2. Magnetic field lines are closed curves.
  3. If magnetic field lines are parallel and equidistant, they represent zero field strength.
  4. Relative strength of magnetic field is shown by the degree of closeness of the field lines.
The black opening between the aqueous humour and the lens is called: