12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Case Based (MCQs) - Alternating Currents

  • question_answer
    The electrical energy spend in running the circuit for one hour is:

    A) \[7.5\times {{10}^{5}}J\]                     

    B) \[10\times {{10}^{3}}J\]

    C) \[9.4\times {{10}^{3}}J\]                     

    D) \[6.2\times {{10}^{4}}J\]

    Correct Answer: D

    Solution :

    (d) \[6.2\times {{10}^{4}}J\] \[\text{Energy spent = power}\times \text{time}\]             \[=17.42\times 60\times 60=6.2\times {{10}^{4}}J\]


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