2. Solved Papers
  3. RAJASTHAN PMT

RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    In the vaccum diode or valve oxide coated emitter are used because:

    A)  the work function is more

    B)  they emits more electron at for temperature                   

    C)  work function is high            

    D)  none of these                   

    Correct Answer: B

    Solution :

    Oxide coated emitter has more conductivity. Therefore, it emits electrons at low temperature.


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