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Current Electricity Test - 72
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Current Electricity Test - 72

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  • Question 1/10
    4 / -1
    For a cell, the graph between the potential difference (V) across the terminals of the cell and the current (I) drawn from the cell is shown in the figure. The e.m.f. and the internal resistance of the cell are

    Solutions

  • Question 2/10
    4 / -1
    When a current I is passed through a wire of constant resistance, it produces a potential difference V across its ends. The graph drawn between log I and log V will be
    Solutions

  • Question 3/10
    4 / -1
    The V–i graph for a conductor at temperatures T1 and T2are as shown in the figure. (T2– T1) is proportional to

    Solutions

  • Question 4/10
    4 / -1
    A cylindrical conductor has uniform cross–section. Resistivity of its material increases linearly from left end to right end. If a constant current is flowing through it and at a section distance x from left end, magnitude of electric field intensity is E, which of the following graphs is correct?
    Solutions

  • Question 5/10
    4 / -1
    The V–i graph for a conductor makes an angle θ with V–axis. Here V denotes the voltage and i denotes current. The resistance of conductor is given by
    Solutions

  • Question 6/10
    4 / -1
    A battery consists of a variable number \'n\' of identical cells having internal resistances connected in series. The terminals of battery are short circuited and the current i is measured. Which of the graph below shows the relationship between i and n
    Solutions

  • Question 7/10
    4 / -1
    In an experiment, a graph was plotted of the potential difference V between the terminals of a cell against the circuit current i by varying load rheostat. Internal conductance of the cell is given by

    Solutions

  • Question 8/10
    4 / -1
    V–i graphs for parallel and series combination of two identical resistors are as shown in figure. Which graph represents parallel combination?

    Solutions

  • Question 9/10
    4 / -1
    The ammeter has range 1 ampere without shunt. The range can be varied by using different shunt resistances. The graph between shunt resistance and range will have the nature

  • Question 10/10
    4 / -1
    For the circuit shown in the figure

    Solutions

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