Question

The maximum resistance for a new spark plug wire is 840 ohms per inch. A 25-in. wire had a resistance of 20,250 ohms. Does this fall within the acceptable limit?​

Answer 1

Yes

Explanation:

Let's calculate the resistance of one inch for our wire and compare it with the maximum:

20250 / 25 = 810 Ohm

810 < 840 ? Yes!

Yes, this is within the acceptable limit. Wire can be used.