Another transistor amplifier problem

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SUMMARY

The forum discussion centers on understanding the AC signal representation on a Cathode Ray Oscilloscope (CRO) as depicted in the VCAA Physics exam document. The correct answer to the question posed is option B, which relates to the signal being centered around 12V. Participants express confusion regarding the cutoff points of the signal and inquire about the effects of adding a capacitor to the output voltage (Vout). Clear and straightforward explanations are requested to enhance understanding.

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poala999
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http://www.vcaa.vic.edu.au/vce/studies/physics/pastexams/physicspilot12004.pdf

Page 13. AC signal on CRO. Answer is B. How the heck do they do that?

Relevant information is on page before.

Love peoples explanations but please try to keep it simple.

Sorry if i seem direct.

I don't understand why it is centred around 12V, and the cut off points.

Sub-question...? what would this look lke if there was a capictor on the Vout.
 
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