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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    In apparatus the values of potential V and flowing current I are given this type \[V=2\text{ }cos\omega \] t volt \[I~=2\text{ }sin\,\omega \] t amp Then, in apparatus the power dissipated will be

    A)  zero             

    B)  1.2 W

    C)  4 W             

    D)  2.0 W

    Correct Answer: A

    Solution :

     The phase difference between V and\[I\]is\[\frac{\pi }{2}\]. So, power dissipated will be zero. \[\therefore \] \[P=V.I\cos \phi \] \[=0\]


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