Electronics - Transistors and Applications - Discussion

5. 

The formula used to calculate the approximate ac resistance of the base-emitter diode (re) is

[A]. mca17_1005a1.gif
[B]. re almostequal.jpg 25 mV × IC
[C]. mca17_1005c1.gif
[D]. mca17_1005d1.gif

Answer: Option A

Explanation:

No answer description available for this question.

Munna Ansari said: (Mar 28, 2018)  
The AC emitter resistance determines the voltage gain. Therefore AC emitter resistance equals 25mv divided by DC emitter current.

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