What will be displayed when current enters the positive terminal of a meter?

What will be displayed when current enters the positive terminal of a meter?

• A. A negative sign is displayed
• B. A positive sign is displayed
• C. It depends
• D. No sign is displayed

Answer: (B)

When current enters the positive terminal of a meter, a positive sign is displayed because most ammeters and voltmeters are designed to indicate the direction of current flow and voltage polarity based on conventional current flow. In these meters, current entering the positive terminal is interpreted as a positive reading. This is aligned with the standard practice in electronics where the positive terminal is the point of reference for measuring voltage or current flow. In addition, reading a positive sign helps users understand the flow direction and magnitude of the electrical quantities being measured. This feedback is critical for diagnosing circuits, making adjustments, and ensuring proper operation of electrical systems.

When current enters the positive terminal of a meter, a positive sign is displayed because most ammeters and voltmeters are designed to indicate the direction of current flow and voltage polarity based on conventional current flow. In these meters, current entering the positive terminal is interpreted as a positive reading. This is aligned with the standard practice in electronics where the positive terminal is the point of reference for measuring voltage or current flow.

In addition, reading a positive sign helps users understand the flow direction and magnitude of the electrical quantities being measured. This feedback is critical for diagnosing circuits, making adjustments, and ensuring proper operation of electrical systems.