Electrical resistance

The electrical resistance limits the current in the system and therefore also the existing voltage.

The unit for measurement of resistance (R) is the ohm (Ω). For ignition cables this value lies in the range of a few thousand ohm or "kiloohm". The purpose of this resistance, as already described, interfering electromagnetic radiation must be reduced. This is achieved by limiting the current (I) through the ignition cable and simultaneously ensuring that the spark plug also receives the necessary voltage (U).

The mathematical formula for this is U = R * I


Related topics

Tekniwiki: Would you like to learn more about the product technology? Then take advantage of the know-how of our experts on the Tekniwiki platform, with 3D animations, videos and diagrams.