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Current Electricity Test - 10
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Current Electricity Test - 10

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  • Question 1/10
    4 / -1
    In an experiment the values of two resistances are R1 = (5.0 ± 0.2)Ω and R2 = (10.0 ± 0.1)Ω. The total resistances, when they are connected in parallel is
    Solutions

  • Question 2/10
    4 / -1
    In a circuit, 3 resistors of resistance 1.2 Ω , 2Ω , 3Ω are connected in parallel. The value of equivalent resistance is
    Solutions

  • Question 3/10
    4 / -1
    In the Wheatstone's network given, P =10Ω, Q = 20Ω, R =15Ω, S = 30Ω, the current passing through the battery (of negligible internal resistance) is

    Solutions

  • Question 4/10
    4 / -1
    Find the equivalent resistance of the network between points a and b?

    Solutions

  • Question 5/10
    4 / -1
    In a typical Wheatstone network the resistances in cyclic order are A =10Ω , B = 5Ω , C = 4Ω and D = 4Ω for the bridge to be balanced

    Solutions

  • Question 6/10
    4 / -1
    Five resistance are connected as shown in the figure. The equivalent resistance between P and Q will be

    Solutions

  • Question 7/10
    4 / -1
    A Wheatstone bridge has the resistances 10Ω, 10Ω, 10Ω and 30Ω in its four arms. What resistance joined in parallel to the 30Ω resistance will bring it to be balanced condition?
    Solutions

  • Question 8/10
    4 / -1
    The effective resistance between points A and B is

    Solutions

  • Question 9/10
    4 / -1
    If 400 Ω of resistance is made by adding four 100 Ω resistance of tolerance 5%, then the tolerance of the combination is
    Solutions

  • Question 10/10
    4 / -1
    Combination of two identical capacitors, a resistor R and a DC voltage source of voltage 6 V is used in an experiment on C-R circuit. It is found that for a parallel combination of the capacitor the time in which the voltage of the fully charged combination reduces to half its original voltage is 10 s. For series combination the time needed for reducing the voltage of the fully charged series combination by half is
    Solutions

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