NEET Class neet Answered
please answer this
Asked by Prashant DIGHE | 27 Jan, 2020, 10:40: PM
Expert Answer
If either switch-A or switch-B is closed, then Base-to-Emitter junction of transistor is forward biased ,
Hence collector of the transistor is shorted to ground, we get 0 V as output
If both switches are open , there is no forward bias, hence collector to ground path is open,
we get +5V as output.
Hence the logic is , 
Answered by Thiyagarajan K | 28 Jan, 2020, 07:44: AM
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