Input impendance

  • #1

Main Question or Discussion Point

I am working on a physics lab and wonder if an input impendece of +/-10V input 1M (for a voltage probe) is high resistance or low resistance.

Can anyone help?
Thanks!
 

Answers and Replies

  • #2
247
1
physicsalex,

http://en.wikipedia.org/wiki/Test_probe

A 1M probe is fairly "standard" as far as oscilloscopes go. A "10X" probe typically is 10M. There are also "Low Impedance Probes" for high frequency signals. The above article will define them for you, but, in general, 1M is the most common.

Fish
 

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