Vin = 1
Vin = 0
Current doesn't flow
Vout = Vin
Answer is Right!
Answer is Wrong!
The correct answer is: A. Vin = 1.
In a complementary transistor pull-up, current flows when the input voltage (Vin) is high (1). This is because the transistor is turned on when Vin is high, and current flows through the transistor from the collector to the emitter.
When Vin is low (0), the transistor is turned off, and no current flows through the transistor.
C. Current doesn’t flow is incorrect because current does flow when Vin is high.
D. Vout = Vin is incorrect because Vout is the output voltage, and it is not equal to Vin when Vin is high.