electricity symbols

wire

flat line

resistor

cell

battery

AC source

DC source

current source

Capacitor

switch

diode

inductor

bulb

motor

voltmeter

ammeter

ohmeter

what causes a short circuit?

a low resistance connection forms between two points in an electrical circuit and the current flows through the newly formed connection rather than the independent path

what is the difference AC and DC?

the main way is the way electrons flow. In DC, electrons flow at a constant rate in only one direction. In AC, electrons flow in both directions and the rate of flow is constantly changing