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NEET Sample Paper NEET Sample Test Paper-41

  • question_answer
    In an LCR circuit, the potential difference between the terminals of the inductance is 60V, between the terminals of the capacitor is 30V and that across the resistance is 40V. Then, supply voltage will be:

    A) 50V                 

    B) 70V  

    C) 130V                

    D) 10V

    Correct Answer: A

    Solution :

    \[{{\operatorname{V}}_{z}}=\sqrt{{{V}^{2}}_{R}+{{\left( {{V}_{L}}-{{V}_{C}} \right)}^{2}}}\] \[{{\operatorname{V}}_{z}}=\sqrt{{{\left( 40 \right)}^{2}}+{{\left( 60-30 \right)}^{2}}}\] \[{{\operatorname{V}}_{z}}=\sqrt{1600+900}\] \[{{\operatorname{V}}_{z}}=50\operatorname{V}\]


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