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Old 07-22-2018, 05:53 PM   #21
Steve/
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Just for grins, not only can you measure voltage across a switch with a low impedance load. A low impedance load is basically tying one end of the switch to ground. You can also measure the current going to the load by measuring across the switch. The switch must be off in both cases.
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Old 07-22-2018, 05:59 PM   #22
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Quote:
Originally Posted by Steve/ View Post
Just for grins, not only can you measure voltage across a switch with a low impedance load. A low impedance load is basically tying one end of the switch to ground. You can also measure the current going to the load by measuring across the switch. The switch must be off in both cases.
You might want to add a disclaimer on that one (bold print above). Many times, there is a 10A maximum limit on measuring current with a meter like a Fluke and others. Hopefully, the internal 10A fuse would blow if the current exceeded 10 amps, but it's not something that someone without good knowledge of meters/electricity should do!
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