The step Recovery Diode is used as Frequency multiplier
Description : In which of these is reverse recovery time nearly zero? (1) Zener diode (2) Tunnel diode (3) Schottky diode (4) PIN diode
Last Answer : In which of these is reverse recovery time nearly zero? (1) Zener diode (2) Tunnel diode (3) Schottky diode (4) PIN diode
Description : What are the applications of diode ?
Last Answer : 1) Rectifier : - It is an electronics device used to convert AC to DC signal. The rectifier output is pulsating in nature their can be two types of rectifier. a) Half wave rectifier b) Full wave ... FWR are of two types : i) center tapped full wave rectifier ii) bridge type full wave rectifier
Description : if you got you will receive some cash
Last Answer : A diode is an electronic device which permits one directional flow of electric current.
Description : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
Last Answer : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
Description : A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode
Last Answer : A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode
Description : The region consisting of holes and electrons near the p-n junction of a diode is (A) diffusion region (B) neutral zone (C) recombination region (D) depletion region
Last Answer : The region consisting of holes and electrons in a pn junction is called depletion layer.The reason being both holes and electrons have neutrolyzed at the junction thus it is depleated with delocalized charge carriers.
Description : The diode oftenly used for voltage regulation in electronic circuits is (a) Zener (b) Varactor (c) Silicon (d) Germanium
Last Answer : The diode oftenly used for voltage regulation in electronic circuits is Zener.
Description : A power diode has lightly doped n type substrate sandwiched between heavily doped p and n regions (a) to increase reverse breakdown voltage (b) to reduce ohmic loss under forward bias (c) to decrease switching time of the power diode (d) to improve transient behaviour of the diode
Last Answer : A power diode has lightly doped n type substrate sandwiched between heavily doped p and n regions to improve transient behaviour of the diode
Description : The reverse breakdown phenomenon in a zener diode is known as
Last Answer : The reverse breakdown phenomenon in a zener diode is known as Avalanche effect
Description : The arrow direction in the diode symbol indicates
Last Answer : Flow of current
Description : When the diode is forward biased, it is equivalent to
Last Answer : When the diode is forward biased, it is equivalent to An On switch
Description : A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is in series with the diode. The current through the diode is
Last Answer : A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is in series with the diode. The current through the diode is 9.3 mA
Description : The cut-in voltage of a silicon diode is approx. • 0.7 volt • 0.3 volt • 1.4 volt • None of the above.
Last Answer : The cut-in voltage of a silicon diode is approx. 0.7 volt
Description : In a tunnel diode, electrons can tunnel through the P-N junction mainly because 1.impurity level is low 2.they have high energy 3.barrier potential is very low 4.depletion layer is extremely thin
Last Answer : In a tunnel diode, electrons can tunnel through the P-N junction mainly because depletion layer is extremely thin
Description : Tunnel diode is a: a) Power diode b) Has light doping c) Has heavy doping d) Is a reverse recovery diode Ans: C 76.LEDs are fabricated from: a) Silicon b) Germanium c) Si or Ge d) Gallium arsenide
Last Answer : Ans: D
Description : What is the use of fast recovery diode?
Last Answer : Fast recovery diode are used in high frequency rectification. Fast recovery diode also used for freewheeling. Fast recovery diode also used for DC to DC converter.
Description : The light emitted diodes consist of: (1) Si (2) GaAs (3) Ge (4) Diamond
Last Answer : The light emitted diodes consist of: GaAs
Description : Assume that D1 and D2 in figure are ideal diodes. The value of current I is A)0mA B) 0.25mA C) 0.5 mA D)1.0mA
Last Answer : Assume that D1 and D2 in figure are ideal diodes. The value of current I is 0mA
Description : Barrier potential in a P-N junction is caused by (A) thermally generated electrons and holes (B) diffusion of majority carriers across the junction (C) migration of minority carriers across the junction (D) flow of drift current.
Last Answer : Barrier potential in a P-N junction is caused by migration of minority carriers across the junction