MCQ
In common emitter transistor amplifier, the output voltage and input voltage have a phase difference of
- A$ \frac{2}{\pi} $
- B$\frac{\pi}{2}$
- C$\frac{5 \pi}{6}$
- ✓$\pi$
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| Column-I | Column-II | ||
| A. | The two SHMs are in phase, $A_1=A_2=A$ | I. | $R=A_1+A_2$ |
| B. | The two SHMs are in phase, $A_1 \neq A_2$ | II. | $R=0$ |
| C. | The two SHMs are $90^{\circ}$ out of phase, $A_1=A_2=A$ | III. | $R=2 A$ |
| D. | The two SHMs are $180^{\circ}$out of phase, $A_1=A_2$ | IV. | $R=\sqrt{2} A$ |