Measuring Current Tutorial
To measure current the circuit must be BROKEN and the meter inserted in the break.
In this circuit the current will be the same no matter where the circuit is broken. If 1 amp is flowing then all meters will indicate 1 amp.
Observe the polarity of the leads when measuring DC. This is not necessary when measuring AC.
Select a high current range on the meter before switching the circuit on.
Switch down to a lower range if necessary to measure the current.
This protects the meter from damage due to excessive current, especially a moving coil one.
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