# If I supply more current than needed will my electronics fry [duplicate]

If I have a stepper motor and driver that require 5V and 240mA and I supply 5V at 3A will my circuitry die?

I have heard the expression that a motor "draws" the current that is needs, but I don't really know if that's true, and if it is true, how's does that even work? It does not seem to be the same for voltage.

I am very beginner with electricity so simpler is preferred thank you all for taking the time to answer I really do appreciate it

Edit: Apparently this is a frequently asked question, view the answer here or go to this page to see one of the largest community discussions on the topic

It's true that it is the LOAD that controls current flow, not the SOURCE

Here's an analogy...

On your house, there is a water valve that you use with a garden hose right? When you crack it open completely, you get a relatively light stream of water. Dad washes his car with it, maybe mom waters her roses.

However, if a fireman opens the hydrant at the roadside, you get enough water coming out to push a parked car backwards.

The source of the water pressure for both is the same water tower.