List of top Physics Questions on Digital Circuits

In the circuit shown, assuming the threshold voltage of the diode is negligibly small, then the voltage \( V_{AB} \) is correctly represented by:

 

The Boolean expression $\mathrm{Y}=\mathrm{A} \overline{\mathrm{B}} \mathrm{C}+\overline{\mathrm{AC}}$ can be realised with which of the following gate configurations.
A. One 3-input AND gate, 3 NOT gates and one 2-input OR gate, One 2-input AND gate 
B. One 3-input AND gate, 1 NOT gate, One 2-input NOR gate and one 2-input OR gate 
C. 3-input OR gate, 3 NOT gates and one 2-input AND gate 
Choose the correct answer from the options given below:

The value of current \( I \) in the electrical circuit as given below, when the potential at \( A \) is equal to the potential at \( B \), will be _____ A.