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Electricity and...

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  • Question 1
    1 / -0

    An electric bulb is marked as `100 W - 220 V`. What is the current flowing through its filament?

  • Question 2
    1 / -0

    An electric heater of 1000 watt is used for 5 hours everyday. What is the amount of electrical energy consumed in 30 days?

  • Question 3
    1 / -0

    An electric geyser draws a current of 10 amperes at 220 V. What is the cost of running it for 2 hours everyday in a month of 30 days, if the cost of electricity is Rs.1.20 per unit?

  • Question 4
    1 / -0

    Which of the following is a natural magnet?

  • Question 5
    1 / -0

    Which of the following statements is NOT true?

  • Question 6
    1 / -0

    Which of the following materials are magnetic in nature?

    (i) Iron nail
    (ii) Key of a car
    (iii) Leather
    (iv) Rubber ball
    (v) Metal door handle

  • Question 7
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    Which of the following statements is NOT true?

  • Question 8
    1 / -0

    By which of the following devices is consumed electrical energy measured?

  • Question 9
    1 / -0

    How many types of wire do all house hold electric circuits consist of?

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