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10th Class Science Electricity and Circuits Question Bank Electricity

  • question_answer
    A How much current is drawn by a bulb rated 100 W and designed for a mains supply of 250 V when operated normally?                         

    A) 0.20 A                                  

    B) 0.40 A                                  

    C) 0.60 A                                  

    D) 0.80 A            

    Correct Answer: B

    Solution :

    \[I=\frac{P}{V},\frac{100}{250}=0.40A\]


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