MCQ
A triode is operated in the linear region of its characteristics. If the plate voltage is slightly increased, the dynamic plate resistance will:
- AIncrease.
- BDecrease.
- ✓Remain almost the same.
- DBecome zero.
✓
Answer
Correct option: C.
Remain almost the same.
Dynamic resistance $(r_P)$ is given by,
$\text{r}_\text{P}=\frac{\Delta\text{V}_\text{P}}{\Delta\text{i}_\text{P}}$
The triode is operating in the linear region. Therefore,
Change in the value of voltage $=$ Change in the value of current
So, $(r_P)$ will remain almost the same.
$\text{r}_\text{P}=\frac{\Delta\text{V}_\text{P}}{\Delta\text{i}_\text{P}}$
The triode is operating in the linear region. Therefore,
Change in the value of voltage $=$ Change in the value of current
So, $(r_P)$ will remain almost the same.
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