Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 1 (Q.No. 5)
5.
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is
100
99
1.01
0.99
Answer: Option
Explanation:

Current gain = 1 + β = 100.

Discussion:
30 comments Page 1 of 3.

Kiran said:   12 months ago
Very Clearly explained and thank you for giving the use case @ Burra Dhanunjaya.

Burra Dhanunjaya said:   4 years ago
However, there will be difference in application and performance of CB and CC configurations most of the people they don't consider this.

CB: To isolate output signal, impedence matching.

CC:providing high input impedence, low output impedence, high Bandwidth.
(5)

Satyam said:   4 years ago
Very clearly explained thanks @Ajay.
(1)

Jyoti prasad said:   4 years ago
Y-> gama B-> beta < ---> alpha

Y = B+1 = 1/1- < = 1/(1-0.99) = 100.
(1)

Saipriya said:   5 years ago
Helpful, Thanks for the answer @Ajay.

Nallendran said:   5 years ago
Thanks for the answer @Ajay.

Nimrod said:   6 years ago
Why do we change modes from CC to CB or vice versa?

What is the practical application of changing transistor modes?

Sreeju said:   6 years ago
Γ=1÷(1-α).

Saravana said:   6 years ago
The explanation is super, Thanks @Ajay.

Pawan said:   6 years ago
Thanks @Ajay.


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