109 views
What is diode?

2 Answers

Answer :

It is the fussion of two type of extrensic semi conductor 1)n type 2)p type
Like 0 like

Answer :

Diode

(1) a two-terminal device that permits the flow of electric current in only one direction. Diodes are most often constructed by abutting n-type and p-type regions of a semiconductor, that has significantly higher electrical conductivity in one direction (forwardbiased) than the other (reverse-biased). Diode devices may be specially designed for low-power, high switching speed applications (signal diodes) or higher-power applications (rectifier diodes).

(2) a two terminal device that conducts in only one direction.
Like 0 like

Please log in or register to answer this question.

Related questions

238 views

Description : Suggest the diode material suitable to rectify 0.5V AC signal.

Last Answer : The diode material suitable to rectify 0.5V AC signal is silicon

1 answer
468 views

Description : Draw symbols of zener diode and LED.

Last Answer : Symbol of zener diode : Symbol of LED

1 answer
298 views

Description : The following is not an application of varactor diode:  a) Parametric amplifier b) Frequency tuner c) Voltage controlled oscillator d) Phase shifter

Last Answer : The following is not an application of varactor diode:  a) Parametric amplifier b) Frequency tuner c) Voltage controlled oscillator d) Phase shifter

1 answer
102 views

Description : A light emitting diode (L.E.D.) can be made from:

Last Answer : Different compound use to get various colors Ex:-  GaAs (gallium arsenide) > infared GaAsP (gallium arsenide phosphide) > Red, gallium(III) phosphide > green, InGaN (Indium gallium nitride) > Blue

3 answers
591 views

Description : A single-phase full-bridge diode rectifier delivers a load current of 10A, which is ripple free. Average and rms values of diode currents are respectively   (a) 10A, 7.07A (b) 5A, 10A (c) 5A, 7.07A (d) 7.07A, 5A

Last Answer : A single-phase full-bridge diode rectifier delivers a load current of 10A, which is ripple free. Average and rms values of diode currents are respectively 5A, 7.07A

1 answer
211 views

Description : Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

Last Answer : Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

1 answer
79 views

Description : A PIN diode is:  (1) A metal semiconductor point-contact diode (2) A microwave mixer diode (3) Often used as a microwave detector (4) Suitable for use as a microwave switch

Last Answer : A PIN diode is: Suitable for use as a microwave switch.

1 answer
65 views

Description : Gunn diode is a:  (1) Negative resistance device (2) Positive resistance device (3) High noise device (4) Low frequency device

Last Answer : Gunn diode is a: Negative resistance device.

1 answer
113 views

Description : A diode D, resistor R and inductor L and a switch S are connected in series.When a voltage V is applied across the circuit and switch is put on, the voltage across L changes as  A) V(1-exp(-t R/L)) B) Vexp(-t R/L) C) Ldi/dt +Ri D) V(1-t R/L)

0 answers
48 views

Description : At very high freqencies the type of diode used for rectification is  A) Abrupt junction B) Graded junction C) Point contact D) Tunnel

0 answers
197 views

Description : When Aluminium is deposited directly upon N type semiconductor, the diode formed has the characteristic  A) Forward current due to minority carriers B) Small delay time from on to off C) Large storage time D) Higher break down voltage

0 answers
76 views

Description : In IC, transistors are utilised as diodes.To get highest breakdown voltage for such diode, it is adjusted to have  A) Ie=0 B) Ic=0 C) Vcb=0 D) Vce=0 

0 answers
84 views

Last Answer : A Zener diode is operated in the Breakdown Region 

1 answer
141 views

Last Answer : A Zener diode is operated in the Reverse bias around the knee of breakdown region mode as a voltage stabilizer.

1 answer
57 views

Last Answer : Avalanche break down in a semiconductor diode occurs when Reverse bias exceeds a certain value

1 answer
82 views

Description : Which side of the diode is positive?

0 answers
245 views

Description : How can you identify a zener diode?

Last Answer : It  conducts  current  in  either  direction.

2 answers
74 views

Description : How do we test a diode?

Last Answer : test

1 answer
150 views

Last Answer : Applications of zener diode are : Zener diode can be use for voltage regulator. Zener diode can be use for clippers or limiters. Zener diode can be use for overvoltage protection. Zener ... reference. Zener diode can be use as transistor regulator. These are some applications of zener diode.

1 answer
132 views

Description : What is the depletion region of a diode?

Last Answer : During the fussion In diode the some hole and electrons from both side created one layer at middle Its width  increase when diode is in reverse bias conditions And decreased in.forward bias conditions.

1 answer
142 views

Description : How much time a diode takes to switch ON in forward bias condition.

Last Answer : t=0 sec.

1 answer
90 views

Last Answer : In Reverse bias of diode when the cathode is connected to positive and anode is connected to negative very small current flows this very small current is known as leakage current of diode.

1 answer
87 views

Last Answer : Diode conducts when the anode voltage is greater than the cathode voltage.

1 answer
118 views

Last Answer : Diode have two terminals.

4 answers
...