2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Semiconducting Devices

JEE Main & Advanced Physics Semiconducting Devices Question Bank Valve Electronics (Diode and Triode)

  • question_answer
    \[14\times {{10}^{15}}\] electrons reach the anode per second. If the power consumed is 448 milliwatts, then the plate (anode) voltage is                                                     [MP PMT 1989]

    A)            150 V                                       

    B)            200V

    C)            \[14\times 448V\]              

    D)            448/14V

    Correct Answer: B

    Solution :

               \[P=Vi\Rightarrow V=\frac{P}{i}=\frac{448\times {{10}^{-3}}}{14\times {{10}^{15}}\times 1.6\times {{10}^{-19}}}=200V\]


You need to login to perform this action.
You will be redirected in 3 sec spinner