Differential Amplifier Fault 1

Compare circuit below to Base Operation Animation. You will note that Output voltage(T1-C+ minus T1-C-) is now -170.94 mV compared to -2.87 volts in the Baseline animation. Determine what component is causing low gain.
(Multiple Choice Below)

Back to Baseline Operation Animation

Note: Both outputs and difference between them are shown. 

Select bad component  from items below!

R1 (collector circuit left)
R1(collector circuit Right)
R2(collector circuit left)
R2(collector circuit Right)
R2(Emitter circuit)
R3(Base circuit left)
R3(Base circuit Right)

Correct Answer Below




Correct Answer Below



Correct Answer Below

R2(Emitter circuit) increased resistance a great deal.