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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Different Measuring Instruments

  • question_answer
    An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance. Their readings are A and V respectively.  If another resistance R is connected in parallel with the voltmeter [EAMCET 2000; KCET 2002]

    A)         Both A and V will increase                                          

    B)         Both A and V will decrease                                        

    C)         A will decrease and V will increase

    D)         A will increase and V will decrease

    Correct Answer: D

    Solution :

                                             After connecting a resistance R in parallel with voltmeter its effective resistance decreases. Hence less voltage appears across it i.e. V will decreases. Since overall resistance decreases so more current will flow i.e. A will increase.


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