Logic Gates
Logic Gates: Overview
This Topic covers sub-topics such as Logic Gates, Truth Table in Logic Gates, Analogue Signals, Digital Signals, Types of Signals, The AND Gate, The OR Gate, The NOT Gate, The NAND Gate, The NOR Gate, The XOR Gate and, Circuits with Logic Gates
Important Questions on Logic Gates


The same input signal is applied to both the (input) terminals of a given logic gate.
If the output is the(i) same as the (common) input signal
(ii) inverted with respect to the (common) input signal,
Identify the logic gate/s involved in each case.

Write down the output at for the inputs and

Identify the logic gates marked and in the given logic circuit.

Identify the logic gates marked P and Q in the given logic circuit.

(i) Identify the logic gates marked P and Q in the given logic circuit.

The inputs A and B are inverted by using two NOT gates and their outputs are fed to the NOR gate as shown below.
Analyse the action of the gates (1) and (2) and identify the logic gate of the complete circuit so obtained.

In a given following electronic logic circuit it behaves at which logic operation?

The below truth table is for which gate?
Input | Output | |

A self-controllable voltage level (svl) circuit and its low-power high-speed cmos circuit applications;

Digital testing of high voltage circuit breaker of;

Explain how voltage levels are interpreted by a digital circuit ?

Draw a labelled graph of voltage versus time for a signal voltage used in digital circuits.






Differentiate between analog signals and digital signals
