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10th Class Science Electricity and Circuits Question Bank Electricity

  • question_answer
    Direction: Observe the given circuit diagram and answer the following question.
    What is the potential difference across\[2\Omega ?\]

    A) 2.5 V                           

    B) 1 V                  

    C) 1.6 V               

    D)        5 V

    Correct Answer: C

    Solution :

    Voltage drop in arm containing\[2\Omega \]and \[3\Omega \]is 4 V. Let Voltage drop across each resistor be \[2x\] and \[3x.\] \[\therefore \]\[2x+3=4\Rightarrow x=4/5\] \[\therefore \]Voltage across \[2\,\Omega \] is \[2x\] i.e., \[2\times 4/5=1.6\,V\]


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