When checking your test leads, the resistance measurement should be:

When checking your test leads, the resistance measurement should be:

• A. Greater than 10 ohms
• B. Less than 1.0 ohms
• C. Between 5 and 10 ohms
• D. No resistance

Answer: (B)

A near-zero resistance in your test leads is what you’re after. The leads should conduct with almost no resistance so they don’t skew the measurement you’re making in the circuit. When you check them, you’ll typically test by shorting the two probes together; a healthy set of leads should read less than 1.0 ohm. If the reading is higher, there may be a damaged conductor, a loose or corroded contact, or degraded insulation causing extra resistance, and you should replace or repair the leads. Values well above this indicate the leads aren’t suitable for accurate measurements.

A near-zero resistance in your test leads is what you’re after. The leads should conduct with almost no resistance so they don’t skew the measurement you’re making in the circuit. When you check them, you’ll typically test by shorting the two probes together; a healthy set of leads should read less than 1.0 ohm. If the reading is higher, there may be a damaged conductor, a loose or corroded contact, or degraded insulation causing extra resistance, and you should replace or repair the leads. Values well above this indicate the leads aren’t suitable for accurate measurements.