Electronics - Bipolar Junction Transistors (BJT) - Discussion

Discussion Forum : Bipolar Junction Transistors (BJT) - Filling the Blanks (Q.No. 1)
1.
The input resistance of the base of an emitter-follower is usually _________.
very low
very high
shorted to ground
open
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Rifat said:   1 decade ago
Because the base current is in microamperes which results to a minute voltage drop across base Resistor.

Sailaja said:   1 decade ago
Common collector is also called Emitter follower.

So common collector has high input resistance and low output resistance. This is used for Impedance matching.

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