Discuss some point to make a conclusion 

DEPARTMENT OF PHYSICS UNIVERSITY OF GHANA DIGITAL ELECTRONICS EXPERIMENT 2. EXPERIMENT WITH NAND GATES A. gate. You are expected to get 3 entries in all. Refer to Fig .1 Use the 3 -input NAND gate to draw a Truth Table for a NAND Connect all the 3 -Inputs of the NAND gate together and then . connect the common point to logical 1 and O in turn. Observe the obt put logic level in each case. You are expected to have produced a NOT gate Refer to Fig. 2a and Fig. 2b . the combinations of the inputs A, B, C..Refer to Fig. 3. The system is suppose to produce an AND gate. Draw The Truth table for the system. Connect the output of one of the NAND gate to the input of NOT gate. Tabulate the output against the different D. Connect the circuit shown in Fig. 4. Draw a Truth Table for the system and hence prove that this 1s a NOR gate. Refer to Fig. 4. Connect the circuit shown Fig. 5. Draw a truth Table for the system and hence prove that this E. is an OR gate. Refer to Fig. 5 F. An EXCLUSIVE -OR gate can be obtained from NAND gate. An EXCLUSIVE-OR gate accepts two input only.So in this experiment you will not use one o? the inputs of the 3-input NAND gate where necessary. Consider a two -inputs EXCLUSIVE-OR gate shown in Fig. 6a: The output F is given by F = AB + AB Since F = We have F = AB + AB Using De-Morgan s Theoren, F = AB .AB The circuiit diagram for F is shown in Fig. 6b. Connect the circuit. Draw the Truth table and hence prove that the system e an EXCLUSIVE- OR gate. Connect the output F of Fig. 6b to an inverter. Draw the truth table for F. Determine the gate repreentation of the system. G. at