Current Electricity

6 Questions
  1. 1

    What is the order of magnitude of electric resistance of the human body (dry)?

    UPSC CSE I - 2005
  2. 2

    Assertion (A): In our houses, the current in AC. electricity line changes direction 60 times per second.

    Reason (R): The frequency of alternating voltage supplied is 50 Hz.

    Codes:

    UPSC CSE I - 2004
  3. 3

    Fluorescent tubes are fitted with a choke. The choke coils

    UPSC CSE I - 2000
  4. 4

    Assertion (A): The temperature of a metal wire rises when an electric current is passed through it.

    Reason (R): Collision of metal atoms with each other releases heat energy.

    Codes:

    UPSC CSE I - 1998
  5. 5

    A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

    UPSC CSE I - 1998
  6. 6

    Domestic electrical wiring is basically a:

    UPSC CSE I - 1996