What do the red and black leads on a multimeter represent?

• A. Analog and Digital Connections
• B. Positive and Negative Connections
• C. Input and Output Connections
• D. Power and Ground Connections

Answer: (B)

The red and black leads on a multimeter are universally designated for positive and negative connections, respectively. The red lead typically connects to the positive terminal of the circuit or component being tested, while the black lead connects to the negative terminal or ground. This color-coding helps to ensure proper connection and polarity when measuring voltage, current, or resistance. It's important to maintain the correct connections to avoid damaging the multimeter or the circuit being tested. The distinction between these leads is fundamental in electrical measurements, as reversing them can lead to inaccurate readings or even equipment damage.