This is accomplished by joining one material for the negative side to another different material for the positive side. Thus the cathode is the negative side of the diode. Diodes Chatt P N Junction Wikipedia Half Wave Rectifier Positive And Negative Half Wave Rectifier The positive side of the diode that is the lead attached to the p type semiconductor is called the anode. Diode positive side . Diodes are simple semiconductors that allow current to flow only in one direction. The positive side is called the anode and the negative one is called the cathode. Knowing which side of an led or light emitting diode is the positive anode side and which side is the negative cathode side is essential if you want to make the led emit light. If the diode is reversed the current is blocked up to a limit. The negative side of a diode is called the cathode a...
