To determine the function of the given electrical network, we need to analyze the logic gates represented in the diagram:
The input to the first gate is "A" and "B." This gate appears to be an OR gate, given the semicircular shape with two inputs merging into it.
The output of this OR gate is fed into the next gate which is a NOT gate, represented by a triangle with a circle at the tip (also known as an inverter).
This combination of an OR gate followed by a NOT gate results in a NOR gate.
A NOR gate is a universal gate that outputs true when all inputs are false. It performs a logical NOR operation, which is an inversion of the OR operation. Hence, the correct answer is:
NOR gate
Let's examine the choices:
AND gate: An AND gate outputs true only when all inputs are true. Not applicable here.
OR gate: An OR gate outputs true when at least one input is true. Here, the output is inverted, making it not an OR gate.
NOT gate: A NOT gate inverts the output of a single input. However, the network involves more than inversion.
NOR gate: Correct, as explained above.
Conclusion: The given network functions as a NOR gate.