Question 332Electricity & Electronics - QMED

The correct answer is A) triangle. The schematic symbol for an operational amplifier used in an analog circuit is a triangle. This is a standard convention in electronic circuit diagrams, as the triangular shape represents the basic structure and functionality of an operational amplifier, which is a key building block of analog electronic circuits. The other options are incorrect because a circle, square, or trapezoid would not accurately represent the operational amplifier symbol. The triangle shape is universally recognized and used to depict operational amplifiers in schematics and circuit diagrams.