I made a circuit on the bread board, 6 v voltage, will be a 1 k Ω resistance and light-emitting diodes in series, it's that simple, want to measure the resistance of electrical current, the multimeter to dc current file (red pens and the slot plug 20 a), red and black pens and touch the resistance head, see diode giant light and then burned out,,
Want to ask what is this situation, with the current file is equal to the resistance measurement short circuit, so 6 v action on the diode is such?