GATE ECE 2014 Set 2 | Question: 12

Question

In the differential amplifier shown in the figure, the magnitude of the common-mode and differential-mode gains are $A_{CM}$ and $A_{d},$ respectively. If the resistance $R_{E}$ is increased, then

                                                                          

• A. $A_{cm}$ increases
• B. common-mode rejection ratio increases
• C. $A_{d}$ increases
• D. common-mode rejection ratio decreases