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Current Electricity Test - 22
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Current Electricity Test - 22
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  • Question 1/10
    4 / -1
    If the ammeter in the given circuit reads 2A, the resistance R is

    Solutions

  • Question 2/10
    4 / -1
    A 6 volt battery is connected to the terminals of a three metre long wire of uniform thickness and resistance of 100 ohm. The difference of potential between two points on the wire separated by a distance of 50 cm will be
    Solutions

  • Question 3/10
    4 / -1
    Resistances n, each of r ohm, when connected in parallel give an equivalent resistance of R ohm. If these resistances were connected in series, the combination would have a resistance in ohm, equal to
  • Question 4/10
    4 / -1
    In the circuit Fig. E = 6.0 V, R1 = 100 Ω, R2 = R3 50Ω, R4 = 75Ω. The equivalent resistance of the circuit in ohm, is

    Solutions

  • Question 5/10
    4 / -1
    A uniform wire of resistance 36 ohm is bent in the form of a circle. The effective resistance across the points A and B is

    Solutions

  • Question 6/10
    4 / -1
    In, the given circuit R1 = 20 Ω, R2 = 40 Ω, R3 = 60 Ω, R4 = 180 Ω, C = 5µF and E = 6 volt. The switch S has been closed for a long time. What is the charge on the capacitor ?

    Solutions

  • Question 7/10
    4 / -1
    A part of circuit shown in Fig. the potential difference across A and B is

    Solutions

  • Question 8/10
    4 / -1
    Voltmeter has a resistance of 20 kΩ. When it is connected in series with a resistance R across a 230 V supply, it reads 200 V. what is the value of R ?
    Solutions

  • Question 9/10
    4 / -1
    The charge flowing in a conductor varies with time as Q= at – bt2, then the current
    Solutions

  • Question 10/10
    4 / -1
    Two cells of unequal emfs E1 and E2 and internal resistances r1 and r2 are joined as shown in fig. VP and VQ are the potential at P and Q respectively.

    Solutions

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