The capacitance of reverse biased P-N junction

The capacitance of reverse biased P-N junction 

1. Decreases with increasing the reverse bias 2. Increases with increasing the reverse bias 3. Depends only on reverse saturation current 4. Makes the P-N junction more effective at high frequencies 
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Answer :

The capacitance of reverse biased P-N junction Decreases with increasing the reverse bias

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Related questions

In the reverse biased p-n junction, the current is of the order of (a) Ampere (b) Milliampere (c) Microampere (d) Nano-ampere

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Last Answer : (d) Nano-ampere

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Last Answer : When the positive terminal of a cell is connected to p-side and negative terminal to the n-side of a p-n junction then it is said to be forward biased. It offers low resistance.

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Last Answer : When an external source of e.m.f is connected to a p-n junction, it is said to be biased.

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Last Answer : d) off switch

When a P - N junction is forward biased

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Last Answer : The depletion region decreases.

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Last Answer : Negative.

applications of P-N junction diode

Description :  applications of P-N junction diode

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Last Answer : It is a sandwich of p type and n type semiconductor 

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Last Answer : The potential barrier at a P - N junction is due to Fixed donor and acceptor ions 

The device in figure 'B' shown in the illustration will conduct when the ____________. EL-0067 A. base-emitter is forward biased and the collector-base is reverse biased B. anode-cathode is forward biased and the cathode-gate is forward biased C. source-gate is forward biased and the gate-drain is reversed biased D. terminal 1-2 is forward biased and the emitter-terminal 1 is reverse biased

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Last Answer : Answer: B

A device used to avoid the relay destroying the op-amp is A. diode B. LED C. reverse bias diode D. forward biased diode

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Last Answer : (4) Sonometer Explanation: A spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Cathode ray oscilloscope is an electronic display ... electron beam that is used to produce visible patterns or graphs on a phosphorescent screen.

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Description : Why gold is added to the p-n junction?

Last Answer : Ans-To reflect heat. To reduce the recombination time.

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Last Answer : (A) a rectifier.

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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 : (B) Diffusion of majority carriers across the junction.

List four specifications of zener diode or P- N junction diode.

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Write two applications of P-N junction diode and zener diode.

Description : Write two applications of P-N junction diode and zener diode. 

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Draw and explain V-I characteristics of a P-N junction diode.

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Last Answer : V-I Characteristics of a P-N junction: V-I characteristics of a Diode: The V-I characteristics can be divided in two parts. 1. Forward characteristics. 2. Reverse ... plot a graph with reverse voltage on horizontal axis and current on vertical axis, we obtain reverse characteristics.

Compare P-N junction and Zener Diode.

Description : Compare P-N junction and Zener Diode.

Last Answer : P-N junction Zener Diode It conducts in only in one direction.  It conducts in both the directions. It is always operated in forward bias condition. It is always operated in ... . It cannot be used for rectification, but commonly used for voltage regulation

Draw V-I characteristics of p-n junction diode? Define static and dynamic resistance of diode.

Description : Draw V-I characteristics of p-n junction diode? Define static and dynamic resistance of diode.

Last Answer : Static Resistance: The resistance offered by a p-n junction diode when it is connected to a DC circuit is called static resistance.  (OR) It is the ratio of DC voltage applied across diode ... The dynamic resistance of a diode is the ratio of change in voltage to the change in current. 

A semiconductor device made up of a single p-n Junction is called a: w) transistor x) diode y) Fet z) integrated circuit

Description : A semiconductor device made up of a single p-n Junction is called a: w) transistor x) diode y) Fet z) integrated circuit

Last Answer : ANSWER: X -- DIODE

Consider the following statements regarding the formation of P-N junctions: 1. Holes diffuse across the junction from P-side to N—side 2. The depletion layer is wiped out. 3. There is continuous flow of current across the junction 4. A barrier potential is set up across the junction Which of the above statements are correct? (a) 1 and 3 (b) 2 and 3 (c) 1 and 4 (d) 2 and 4

Description : Consider the following statements regarding the formation of P-N junctions: 1. Holes diffuse across the junction from P-side to N-side 2. The depletion layer is wiped out. 3. There is continuous flow of current across the junction 4 ... correct? (a) 1 and 3 (b) 2 and 3 (c) 1 and 4 (d) 2 and 4

Last Answer : Ans: (c) When a pn-junction is formed, there will be diffusion of carries across the junctions followed by recombination, and the creation of a depletion layer across which a ... potential is established, which will prevent further diffusion of carries across the junction, leading to equilibrium

When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier

Description : When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier

Last Answer : Rectifier

The waveform of a certain signal can be studied by (1) Spectrometer (2) Cathode ray oscilloscope (3) p – n junction diode (4) Sonometer

Description : The waveform of a certain signal can be studied by (1) Spectrometer (2) Cathode ray oscilloscope (3) p – n junction diode (4) Sonometer

Last Answer : Sonometer

The region consisting of holes and electrons near the p-n junction of a diode is

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.

Barrier potential in a P-N junction is caused by

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

In a tunnel diode, electrons can tunnel through the P-N junction mainly because

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 

In a PN-junction with open circuit terminal (equilibrium), with P doping higher as compared to N

Description : In a PN-junction with open circuit terminal (equilibrium), with P doping higher as compared to N doping (A) N-side depletion region is small as compared to p-side depletion region (B) N-side ... depletion region (C) N-side depletion region is same as p-side depletion region (D) Cannot say

Last Answer : In a PN-junction with open circuit terminal (equilibrium), with P doping higher as compared to N doping N-side depletion region is small as compared to p-side depletion region

P-N junction is....

Description : P-N junction is  A) a rectifier B) an amplifier C) an oscillator  D) a coupler

Last Answer : P-N junction is a rectifier.

p-n Junction Diode

Description : Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.

Last Answer : Lecture -1: p-n Junction Diode Diode: A pure silicon crystal or germanium crystal is known as an intrinsic semiconductor. There are not enough free electrons and holes in an intrinsic ... . Therefore, there is a flow of carriers and thus flow of current. IIT ROORKEE

When the reverse bias on a varactor is increased, what happens to the effective capacitance?

Description : When the reverse bias on a varactor is increased, what happens to the effective capacitance?

Last Answer : Capacitance decreases.