CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2005

  • question_answer
    A 5.0 amp current is setup in an external circuit by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by:

    A)  \[1.08\times {{10}^{4}}J\]           

    B)  \[1.08\times {{10}^{4}}J\]

    C)  \[1.8\times {{10}^{4}}J\]             

    D)  \[1.8\times {{10}^{4}}J\]

    Correct Answer: A

    Solution :

    Chemical energy reduced \[=-V\,I\,t\]                 \[=6\times 5\times 6\times 60\]                 \[=10800\]                 \[=1.080\times {{10}^{4}}\]volt


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