What color marks the negative terminal on most batteries?

What color marks the negative terminal on most batteries?

• A. White
• B. Black
• C. Red
• D. Blue

Answer: (B)

Color-coding is used to show polarity on most batteries, making it quick and safe to connect leads correctly. The usual scheme is red for the positive terminal and black for the negative terminal. That’s why black is the best answer here — it’s the standard marker for the negative side, helping you avoid reversing connections that could cause a short or damage. White and blue aren’t the common markings for the negative terminal on most batteries, and red indicates the positive terminal, not the negative. If in doubt, always check the battery labeling or measure with a voltmeter before connecting.

Color-coding is used to show polarity on most batteries, making it quick and safe to connect leads correctly. The usual scheme is red for the positive terminal and black for the negative terminal. That’s why black is the best answer here — it’s the standard marker for the negative side, helping you avoid reversing connections that could cause a short or damage. White and blue aren’t the common markings for the negative terminal on most batteries, and red indicates the positive terminal, not the negative. If in doubt, always check the battery labeling or measure with a voltmeter before connecting.