How does the multimeter measure Ann?
An electric current is measured by an electric current:Current measurement by multimeter:Place the multimeter in the current register and then press the handle with your hand so that the jaw opens,Put a certain line of electricity in and release the handle so that the jaws are closed,Observe the screen display, the above value is the current value you want to measure.Note that when measuring, be sure not to let the pliers mouth touch other lines, or it is prone to circuit accidents.
General multimeter can only measure 500 mA, type 500 multimeter, maximum measurement of 5 ann.
AC current clamp type meter, direct measuring or current transformer.DC high current; you can design a "shunt", that is, the design of a shunt circuit, take the voltage samples on the resistance, and then calculate the circuit current.