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VIT Engineering VIT Engineering Solved Paper-2010

  • question_answer
    50\[\Omega \] and 100\[\Omega \] resistors are connected in series. This connection is connected with a battery of 2.4 V. When a voltmeter of 100\[\Omega \]resistance is connected across 100\[\Omega \] resistor, then the reading of the voltmeter will be

    A)  1.6 V           

    B)  1.0 V

    C)  1.2 V           

    D)  2.0 V  

    Correct Answer: C

    Solution :

    Equivalent resistance of the circuit \[{{R}_{eq}}=100\Omega \] Current through the circuit, \[i=\frac{2.4}{100}A\] PD across combinationi of voltmeter and \[1000\Omega \] resistance \[=\frac{2.4}{100}\times 50=1.2V\] Since the voltmeter and \[100\Omega \] resistance are in parallel.             So, the voltmeter reads the same value ie,\[1.2V\].


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