# what is the reason of a Short Circuit? [duplicate]

I am new to electronics, and I don't understand the theory of a Short Circuit.

Why does a Short Circuit happen?

• Please google around first and do some reading, then come back and ask us specifically what it is about the theory that you do not understand. – DKNguyen Aug 3 '20 at 15:17
• I would start with V=IR and output impedance or resistance of a source/battery. – DKNguyen Aug 3 '20 at 15:34
• Fumble-fingers holding screwdrivers. – jonk Aug 3 '20 at 17:11