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

  • question_answer
    n equal resistors are first connected in series and then connected in parallel. What is the ratio of the maximum to the minimum resistance                                                      [KCET 1994]

    A)                    n                                        

    B)            \[\frac{1}{{{n}^{2}}}\]

    C)                    \[{{n}^{2}}\]

    D)            \[\frac{1}{n}\]

    Correct Answer: C

    Solution :

                 \[{{R}_{\max }}=nR\] and \[{{R}_{\min }}=R/n\] Þ \[\frac{{{R}_{\max }}}{{{R}_{\min }}}={{n}^{2}}\]            


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