Consider the circuit obtained from that by grounding the base terminal, lifting the bottom plate of C off ground, and driving this plate with an ideal signal source vsig. This turns the circuit into a...

Consider the circuit obtained from that by grounding the base terminal, lifting the bottom plate of C off ground, and driving this plate with an ideal signal source vsig. This turns the circuit into a CB voltage amplifi er. Find the small-signal voltage gain voyvsig. Hint: fi rst fi nd the gain from vsig to ve, the emitter signal, and then from ve to vo.