Q. Switch is open when transistor is in

A
cutoff region
B
linear region
C
saturation region
D
breakdown region
Solution:
  • With a zero signal applied to the Base of the transistor it turns ?OFF? acting like an open switch and zero collector current flows.
  • With a positive signal applied to the Base of the transistor it turns ?ON? acting like a closed switch and maximum circuit current flows through the device.
  • Therefore the correct option is A.
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