because two semiconductors are there.....P and N
zener
A thin junction diode which exhibits negative resistance under low forward bias condition is known as tunnel diode.
A thin junction diode which exhibits negative resistance under low forward bias condition is known as tunnel diode.
A thyristor, also known as a silicon controlled rectifier, is a diode that can be turned on by application of a small gate voltage.
Diode is known as a rectifier because it only allows the current to flow in one direction. Diode is only effective when the input is AC.
Zener diode can be defined as diode which allows current to flow in the forward direction in the same method as an ideal diode, but will also allow it to flow in reverse direction when the voltage is above definite value known as the breakdown voltage
I think you you are asking about varactor diode. varactor means variable capacitor. varactor diode is a p-n junction diode which provide a capacitance across it subjected to applied forward and reverse bias. means it provide variable capacitance which depends on the applied reverse voltage(mostly varactor diode works on reverse voltage).They are also known as varicap
The symbol for the esaki diode, also known as the tunnel diode, is similar to the zener diode, except that the two stems on the end of the cathode both point back towards the anode, and they are at 90 degrees instead of 45 degrees. For more information, and a picture, please see the related link below.
zener diode :zener diode operates under reverse bias voltageideal diode :ideal diode operates under forward bias voltage
yes, diode can be used as rectifier diode to convert ac to dc
The junction formed by the combination of a P- type & N-Type material in known as PN jn diode. It is used as a switch as well as a rectifier.
Laser diode