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## Main Question or Discussion Point

I need this clarified. I've been told that if you have a circuit with a load resistance of 0, but you have a power supply of internal resistance, when you have no voltage coming from the power pack you will still get a current. I don't understand how this works. I've been told its because the internal resistance creates a potential difference but I do not understand how it does this.

Could anyone help me out? :)

Could anyone help me out? :)