how to measure the current consumed by dc motor

Thread Starter

Arunmosespaul P

Joined Apr 11, 2019
in this circuit

without DMM the motor is running fine.

with DMM the motor is not running.

the scope here is to measure the motor current through DMM.

i tried 6 and half also. cant get result.

anyone please help me out in this regards.

any idea about measuring using arduino uno?



Joined Sep 7, 2010
The resistance of DDM is reducing the current in the circuit so the motor won't run ... You need a clamp meter .. it is not connected to the circuit , but has jaws which clamp around the wire .....

If you can't get one of these , but do have variable power supply you can get a rough idea by first running the motor as it would normally do and note the speed ... then connect the DMM and power motor with variable supply , turn up the voltage till motor runs at same speed as before and read current.