The following figure shows a logic gate circuit with two inputs \(A\) and \(B\) and the output \(Y\). The voltage waveforms of \(A, B\) and \(Y\) are as given. The logic gate is

It is clear from the given logic circuit, that the output \(Y\) is low when both the inputs are high, otherwise it is high. Thus logic circuit is \(NAND\) gate.
| A | B | Y |
|---|---|---|
| 1 | 1 | 0 |
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
Sliding contact of a potentiometer is in the middle of the potentiometer wire having resistance \( R_p = 1 \, \Omega \) as shown in the figure. An external resistance of \( R_e = 2 \, \Omega \) is connected via the sliding contact.
The current \( i \) is : 


The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.