- #1
Vibhor
- 971
- 40
Hello ,
This doubt arose while studying chapter on semiconductor devices in grade 12 of high school physics .
Please clear a doubt in as simple
language as possible . In order to be
specific with my question I need a
diagram which is exactly as mentioned
in the video below . Kindly see
Note : I do not wish to understand the working of a transistor .
I would just like to understand what type of input current (AC/DC) IB enters the base. ?
You may look directly at two times , at 7:32 and at 13: 40 . Here the instructor applies an input signal Vi across the battery Vbb and says that the input signal varies from Vbb+Vi to Vbb-Vi i.e she superimposes the two voltages . Is it correct to superimpose the voltages ?
Is the input current IB entering the base an alternating current ?
I would like to understand , what happens when a AC source is applied parallel to DC battery ?
What is the role of capacitor in this diagram?
If two DC batteries are in parallel , then the bigger battery dominates and current flows to the smaller battery from positive terminal .
But what happens when AC signal is put across DC ? Is it a simple addition just like shown in the video ?
Please give a simple explanation as I have a very basic understanding of AC .
Many Thanks
This doubt arose while studying chapter on semiconductor devices in grade 12 of high school physics .
Please clear a doubt in as simple
language as possible . In order to be
specific with my question I need a
diagram which is exactly as mentioned
in the video below . Kindly see
Note : I do not wish to understand the working of a transistor .
I would just like to understand what type of input current (AC/DC) IB enters the base. ?
You may look directly at two times , at 7:32 and at 13: 40 . Here the instructor applies an input signal Vi across the battery Vbb and says that the input signal varies from Vbb+Vi to Vbb-Vi i.e she superimposes the two voltages . Is it correct to superimpose the voltages ?
Is the input current IB entering the base an alternating current ?
I would like to understand , what happens when a AC source is applied parallel to DC battery ?
What is the role of capacitor in this diagram?
If two DC batteries are in parallel , then the bigger battery dominates and current flows to the smaller battery from positive terminal .
But what happens when AC signal is put across DC ? Is it a simple addition just like shown in the video ?
Please give a simple explanation as I have a very basic understanding of AC .
Many Thanks