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Current Electricity Test - 16
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Current Electricity Test - 16
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  • Question 1/10
    4 / -1
    The current in a simple series circuit is 5.0 A, When an additional resistance of 2.0 Ω is inserted, the current drops to 4.0 A. The original resistance of the circuit in ohm was
    Solutions

  • Question 2/10
    4 / -1
    A battery of emf 2 V and internal resistance 0.1Ω is being charged by a current of 5 A. The potential difference between the terminals of the battery is
  • Question 3/10
    4 / -1
    An energy source will supply a constant current into, the load, if its internal resistance is
    Solutions

  • Question 4/10
    4 / -1
    The n rows each containing m cells in series are joined in parallel. Maximum current is taken from this combination across an external resistance of 3Ω resistance. If the total number of cells used are 24 and internal resistance of each cell is 0.5 Ω, then
    Solutions

  • Question 5/10
    4 / -1
    The figure shows a network of currents. The magnitude of current is shown below.The current I will be

    Solutions

  • Question 6/10
    4 / -1
    A galvanometer has current range of 15 mA and voltage range 750 mV. To convert this galvanometer into an ammeter of range 25 A, the required shunt is
    Solutions

  • Question 7/10
    4 / -1
    The daniel cell is balanced on 125 cm length of a potentiometer. Now, the cell is short circuited by a resistance of 20 and the balance is obtained at 100 cm. The internal resistance of the daniel cell is
    Solutions

  • Question 8/10
    4 / -1
    An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal rsistance. Their reading are A and V respectively. If another resistance R is connected in parallel with the voltmeter, then
  • Question 9/10
    4 / -1
    In a potentiometer of a cell of emf 1.25 V gives balancing length of 30 cm.If the cell is replaced by another cell, balancing length is found to be 40 cm. What is the emf of second cell?
    Solutions

  • Question 10/10
    4 / -1
    What is the value of shunt resistance required to convert a galvanometer of resistance 100Ω into an ammeter of range 1 A? Given, full scale deflection of the galvanometer is 5mA
    Solutions

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