JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Grouping of Resistances

  • question_answer
    A student has 10 resistors of resistance ?r?. The minimum resistance made by him from given resistors is                                                                                              [AFMC 1995]

    A)                    10 r

    B)                                      \[\frac{r}{10}\]

    C)                    \[\frac{r}{100}\]          

    D)            \[\frac{r}{5}\]

    Correct Answer: B

    Solution :

                 To obtain minimum resistance, all resistors must be connected in parallel. Hence equivalent resistance of combination \[=\frac{r}{10}\]


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