MCQ
An electric heater converts electrical energy into:
  • A
    Chemical energy
  • B
    Heat energy
  • C
    Muscular energy
  • D
    None of the above

Answer

  1. Heat energy

Explanation:

When a current passes through an electric heater, it becomes hot.

Therefore, in an electric heater, electrical energy is converted into heat energy.

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

A person cannot see the distant objects clearly (though he can see the nearby objects clearly). He is suffering from the defect of vision called:
  1. Cataract.
  2. Hypermetropia.
  3. Myopia.
  4. Presbyopia.
The magnification produced by a spherical mirror and a spherical lens is +0.8.
The power of a concave lens is 10D and that of a convex lens is 6D. When these two lenses are placed in contact with each other, the power of their combination will be:
  1. +16D
  2. +4D
  3. -16D
  4. -4D
Which of the following correctly describes the magnetic field near a long straight wire?
  1. The field consists of straight lines perpendicular to the wire.
  2. The field consists of straight lines parallel to the wire.
  3. The field consists of radial lines originating from the wire.
  4. The field consists of concentric circles centred on the wire.
The splitting of white light into its constituent colours by a triangular prism is called ________?
Though a woman can see the distant object clearly, she cannot see the nearby objects clearly. She is suffering from the defect of vision called:
  1. Long-sight.
  2. Short-sight.
  3. Hind-sight.
  4. Mid-sight.
Which arrangement is used for domestic circuits?
A converging lens is used to produce an image of an object on a screen,object on a screen. What change is needed for the image to be formed nearer to the lens?
  1. Increase the focal length of the lens.
  2. Insert a diverging lens between the lens and the screen.
  3. Increase the distance of the object from the lens.
  4. Move the object closer to the lens.
A myopic person cannot see distinctly, objects that are:
The real image formed by a concave mirror is larger than the object when object is: