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Electric Curren...

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  • Question 1
    1 / -0

    What is incorrect about CFLs?

  • Question 2
    1 / -0

    In which direction will the compass needle put parallel to the upper wire (such that the north pole of the needle is towards the coil) show deflection when the switch in the circuit as shown in the diagram is closed?

  • Question 3
    1 / -0

    Directions For Questions

    In the circuit diagram shown below:

    ...view full instructions

    What will be the order in which the bulbs A, B,A,\ B, and CC will glow when the switch is moved to the 'on' position?

  • Question 4
    1 / -0

    Symbol of switch in 'ON' position is -

  • Question 5
    1 / -0

    Directions For Questions

    In the circuit diagram shown below:

    ...view full instructions

    Would any of the bulbs glow when the switch is in the 'off' position?

  • Question 6
    1 / -0

    Identify the circuit (Figure 12.3) in which the electrical components have been properly connected

  • Question 7
    1 / -0

    The diagram shows the circuit of an door bell. What happens when the bell button is switched on then switched off?

    Switch onSwithc off
    (A)11 ting is heardSilence
    (B)11 ting is heard11 ting is heard
    (C)ContinuousSilence
    (D)SilenceContinuous ringing

  • Question 8
    1 / -0

    What is the missing label at ⋆\star ?

  • Question 9
    1 / -0

    Directions For Questions

    Three specimens of-magnetic material were tested using the apparatus shown in the diagram.
    When the switch is closed, the specimen picks up some of the iron nails but when the switch is opened, many or most of the nails fall off. The number of nails picked up and left on were found for three specimens. The table shows the results.
    SpecimenNumber of nails picked upNumber of nails left on
    X354
    Y2010
    Z403

    ...view full instructions

    Which among the following pair of elements are suitable in the construction of electric bell?

  • Question 10
    1 / -0

    Which of the following is directly responsible for the production of sound in an electric bell?

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