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Current Electricity Test - 23
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Current Electricity Test - 23
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  • Question 1/10
    4 / -1
    The colours of the rings on a resistor are brown, yellow, green and gold as seen from the left to the right. The value of the resistance is
  • Question 2/10
    4 / -1
    Two metallic rings A and B, identical in shape and size but having different resistivities ρA and ρB , are kept on top of two identical solenoids as shown in the figure. When current1 is switched on in both the solenoids in identical manner, the rings A and B jump to the heights hAand hB , respectively, with hA> hB .
    The possible relation(s) between their resistivities and their masses mAand mB is (are)

    Solutions

  • Question 3/10
    4 / -1
    If the free electron density ben and relaxation time be T, the electrical conductivity of a conductor may be expressed as
    Solutions

  • Question 4/10
    4 / -1
    The plot represents the flow of current through a wire at three different times.
    The ratio of charges flowing through the wire at different times is

  • Question 5/10
    4 / -1
    Which of the following set up can be used to verify the Ohm's law?
  • Question 6/10
    4 / -1
    In the given figure, the steady state current in the circuit is

    Solutions

  • Question 7/10
    4 / -1
    The current I drawn from the 5 V source will be

    Solutions

  • Question 8/10
    4 / -1
    In the circuit (figure) the current is to be measured. The ammeter shown is a galvanometer with a resistance RG = 60.00Ω converted to an ammeter by a shunt resistance rs = 0.2Ω. The value of the current is

    Solutions

  • Question 9/10
    4 / -1
    Four resistence of 10 Ω, 60Ω, 100 Ω and 200Ω, respectively taken in order are used to form a Wheatstone's bridge. A 15 V battery is connected to the ends of a 200Ω resistance, the current through it will be
    Solutions

  • Question 10/10
    4 / -1
    When a resistor of 11Ω is connected in series with an electric cell. The current flowing in it is 0.5 A. Instead when a resistor of 5Ω is connected to the same electric cell is series, the current increases by 0.4 A. The internal resistance of the cell is
    Solutions

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