Which symbol is typically used to denote a resistor in a schematic?

Which symbol is typically used to denote a resistor in a schematic?

• A. A rectangle
• B. A circle with the letter R
• C. A zigzag line
• D. A coil

Answer: (C)

The main idea is that the zigzag line is the standard symbol used to denote a resistor in schematic diagrams. This shape has become the quick, recognizable shorthand for resistance, so it clearly identifies a two-terminal passive component whose value is given in ohms. It helps distinguish resistors from other parts: a coil represents an inductor, a circle with an R isn’t a standard symbol for a resistor, and a simple rectangle can be used in some international (IEC) drawings but isn’t the most familiar symbol in many teaching contexts. While you might see a rectangular resistor in some diagrams, the zigzag form is the most widely used and instantly recognizable in basic electronics schematics.

The main idea is that the zigzag line is the standard symbol used to denote a resistor in schematic diagrams. This shape has become the quick, recognizable shorthand for resistance, so it clearly identifies a two-terminal passive component whose value is given in ohms. It helps distinguish resistors from other parts: a coil represents an inductor, a circle with an R isn’t a standard symbol for a resistor, and a simple rectangle can be used in some international (IEC) drawings but isn’t the most familiar symbol in many teaching contexts. While you might see a rectangular resistor in some diagrams, the zigzag form is the most widely used and instantly recognizable in basic electronics schematics.