NEET Sample Paper NEET Sample Test Paper-72

  • question_answer
    Three identical resistances A, B and C are connected as shown in the given figure. The heat produced will be maximum

    A) In B

    B) In B and C

    C) In A

    D) Same for A, B and C

    Correct Answer: C

    Solution :

    Resistance of A is greater than the resistance of combination of B and C, hence voltage drop across A will be greater than that across B or C. Also \[H=\frac{{{V}^{2}}t}{R}\] \[\Rightarrow \,\,\,\,\operatorname{H} \propto \,\,V{{}^{2}}\,so\,\,{{H}_{A}}>\,\,({{H}_{B}}={{H}_{C}})\,\,(R=constant)\]


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