Which of the following circuits are correct with reference to the inverter?

(i)

(ii)

(iii)

(iv)

Question

Question

This question was previously asked in

UGC NET Paper 2: Electronic Science Dec 2018 Official Paper

Answer 1

Explanation:

Inverter

This is equal to NOT gate in the digital circuitry.

The output of this is a compliment of the input.

F1 Tapesh 31.3.21 Pallavi D10

This can be built from the transistors like BJT, MOSFET, etc…

The structure with the BJT is:

F1 Tapesh 31.3.21 Pallavi D11

The CMOS inverter consists of the NMOS and the PMOS field-effect transistors connected in one below the other.

F1 Tapesh 31.3.21 Pallavi D12

NMOS inverter

PMOS transistor

Conclusion:

From the given circuits (i), (iii), and (iv) are correct.