What does "of a lead" mean when it says " toward the positive electrode of a lead"
The whole sentence is :" It measures the electric potential V as a function of time in a certain direction (toward the positive electrode of a lead)
My question is:
If it means the certain direction is the positive electrode, why not just saying (toward the positive electrode)? what is the function of "of a lead " here?
Thank you.

Question

What does "of a lead" mean when it says " toward the positive electrode of a lead"
The whole sentence is :" It measures the electric potential V as a function of time in a certain direction (toward the positive electrode of a lead)
My question is:
If it means the certain direction is the positive electrode, why not just saying (toward the positive electrode)? what is the function of "of a lead " here? 
Thank you.

Answer

The metallic part at the end of the lead is the electrode. The electrode isn't always at the end of a lead or wire but this one is. It could also be on a  caliper for example.

Answer

lead=铅条？

Answers · 2

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