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VIT Engineering VIT Engineering Solved Paper-2011

  • question_answer
    An inductive circuit contains a resistance of \[10\Omega \] and an inductance of 2.0 H. If an AC voltage of 120 V and frequency of 60 Hz is applied to this circuit, the current in the circuit would be nearly

    A)  0.32 A          

    B)  0.16 A

    C)  0.43 A          

    D)  0.80 A

    Correct Answer: B

    Solution :

    Impedence \[Z=\sqrt{{{R}^{2}}+X_{L}^{2}}\] \[=\sqrt{{{(10)}^{2}}+{{(2\pi \times 60\times 2)}^{2}}}\] \[=753.7\] \[\therefore \] Current \[i=\frac{V}{Z}=\frac{120}{753.7}=0.159A\]


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