Another transistor amplifier problem

AI Thread Summary
The discussion revolves around understanding an AC signal displayed on a CRO, specifically focusing on why the signal is centered around 12V and the significance of the cutoff points. Participants express a desire for clear, straightforward explanations regarding these concepts. There is also curiosity about how the output would change if a capacitor were added to the circuit. The original poster invites further discussion and offers their contact information for direct communication. Overall, the thread seeks clarity on the operation of transistor amplifiers in relation to AC signals.
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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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not sure if I'm allowed to post my msn address but here it is k.c@internode.on.net, add me for a chat if need be. Thanks a million!
 

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