It is essential to know which wire is positive and which is negative in a DC circuit. The negative wire is black, leaving the positive wire as the red wire. If a black cable clamp is attached to the negative terminal of the battery of the vehicle providing assistance, the red wire must be linked to the positive terminal.
To avoid harming the negative terminals, it is crucial to execute this correctly. Positive wires should always be placed on top and negative wires on the bottom, so be sure you have the correct color and arrangement. It is essential to remember that red is positive and black is negative when working with these types of circuits.
In a DC circuit, the red wire is considered positive and the black wire is considered negative. Make sure that the positive wire is on top and the negative wire is on the bottom to prevent any potential harm to the negative terminals.