A) 50 V
B) 0.002 V
C) 4.5 V
D) 0.02 V
Correct Answer: C
Solution :
The ratio of increase in plate potential (while grid potential is kept constant) to the increase in grid potential (while plate potential is kept constant) for a definite increase in plate current is called the amplification factor of the triode value. \[\therefore \] \[\mu =\frac{\Delta {{V}_{P}}}{\Delta {{V}_{g}}}\] Putting the numerical values from the question, we have \[\mu =15,\,\Delta {{V}_{g}}=0.3\,V\] \[\therefore \] \[\Delta {{V}_{P}}=15\times 0.3=4.5\,V\]
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