question_answer

                Consider two transistors as shown in figure. If 0 volts corresponds to false and 5Volts correspond to true then the output at corresponds to :                     JEE Main Online Paper (Held On 09 April 2013)

A)                 A NAND B                                           

B)                 A OR B                                 

C)                 A AND B                              

D)                 A NOR B

Correct Answer: C

Solution :

                                                There are two individual NOT gates, and when they combine provide NAND gate. \[\Rightarrow \]               So, A and B.