MCQ
The amplification factor of a triode valve is $15.$ If the grid voltage is changed by $0.3$ volt the change in plate voltage in order to keep the plate current constant (in volt) is
- A$0.02$
- B$0.002$
- ✓$4.5$
- D$5.0$
✓
Answer
Correct option: C.
$4.5$
$\mu=\frac{\Delta V_p}{\Delta V_g} $
$\Rightarrow \Delta V_p=\mu \Delta V_g=15 \times 0.3=4.5$ volt.
$\Rightarrow \Delta V_p=\mu \Delta V_g=15 \times 0.3=4.5$ volt.
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