When the diode is forward biased, it is equivalent to

When the diode is forward biased, it is equivalent to
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Answer :

When the diode is forward biased, it is equivalent to An On switch

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Related questions

When the diode is forward biased, it is equivalent to a. An off switch b. An On switch c. A high resistance d. None of the above

Description : When the diode is forward biased, it is equivalent to a. An off switch b. An On switch c. A high resistance d. None of the above

Last Answer : b. An On switch

A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is in series with the

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

Why does a forward biased diode offer low resistance?

Description : Why does a forward biased diode offer low resistance?

Last Answer : The external voltage over comes the junction potential and provides an easy path for the flow of charges across the junction. Hence it offers low resistance.

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

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

Last Answer : reverse bias diode

A light emitting diode emits light only when (a) Reversed biased (b) forward biased (c) unbiased (d) none

Description : A light emitting diode emits light only when (a) Reversed biased (b) forward biased (c) unbiased (d) none

Last Answer : (b) forward biased

Describe the working of PN junction diode with neat sketch under forward biased condition.

Description : Describe the working of PN junction diode with neat sketch under forward biased condition.

Last Answer : If the p-region (anode) is connected to the positive terminal of the external DC source and nside (cathode) is connected to the negative terminal of the DC source then the biasing ... The large number of majority carriers crossing the junction constitutes a current called as the forward current.

What are the applications of 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

what is a diode

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.

A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum 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  

A diode in which the change in reverse bias voltage varies the capacitance is called as

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Last Answer : A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode

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

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The diode oftenly used for voltage regulation in electronic circuits is

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Last Answer : The diode oftenly used for voltage regulation in electronic circuits is  Zener.

A power diode has lightly doped n type substrate sandwiched between heavily doped p and n regions

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

The reverse breakdown phenomenon in a zener diode is known as

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

The arrow direction in the diode symbol indicates

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Last Answer : Flow of current

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Last Answer : The cut-in voltage of a silicon diode is approx. 0.7 volt

The step Recovery Diode is used as

Description : The step Recovery Diode is used as • Frequency adder • Frequency subtractor • Frequency multiplier • None of the above.

Last Answer : The step Recovery Diode is used as Frequency multiplier

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 

Why does a reversed biased diode offer high resistance?

Description : Why does a reversed biased diode offer high resistance?

Last Answer : The charge carriers are repelled from the junction and no current flows through the junction. Thus the diode offers a high resistance.

Sketch circuit diagram of positive biased clipper using diode and explain its working.

Description : Sketch circuit diagram of positive biased clipper using diode and explain its working.

Last Answer : Positive Series Clipper with positive Vr. The following figure represents the circuit diagram for positive series clipper when the reference voltage applied is positive. During the positive cycle ... Hence the input signal that is greater than the reference voltage, appears at the output.

When biased correctly, a zener diode:

Description : When biased correctly, a zener diode:

Last Answer : When biased correctly, a zener diode: Has a constant voltage across it

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

Description : 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 ... is reversed biased D. terminal 1-2 is forward biased and the emitter-terminal 1 is reverse biased

Last Answer : Answer: B

When is a p-n junction said to be forward biased or what is meant by forward biasing of p-n junction? How does it affect resistance?

Description : When is a p-n junction said to be forward biased or what is meant by forward biasing of p-n junction? How does it affect resistance?

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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Description : When an SCR is forward biased, what is needed to cause it to conduct?

Last Answer : A gate signal.

When a PN junction is forward biased, what happens to the depletion region?

Description : When a PN junction is forward biased, what happens to the depletion region?

Last Answer : The depletion region decreases.

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Last Answer : c) A few ohm

For normal operation of a transistor, the collector base junction is kept (a) Unbiased (b) forward biased (c) reverse biased (d) none

Description : For normal operation of a transistor, the collector base junction is kept (a) Unbiased (b) forward biased (c) reverse biased (d) none

Last Answer : (c) reverse biased

When a P - N junction is forward biased

Description : When a P - N junction is forward biased  1.only electrons in N-region are injected into P-region 2.only holes in P-region are injected into N-region 3.majority carriers in each region are injected into the other region 4.minority current is reduced to zero 

Last Answer : When a P - N junction is forward biased majority carriers in each region are injected into the other region 

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Last Answer : A forward-biased PN-junction,  results in increase in diffusion current 

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While testing a semi-conductor diode with an ohmmeter, both the forward and reverse readings are almost in the infinity range. This would indicate that the unit is _____________. A. good B. open C. grounded D. shorted

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When using an ohmmeter to test a semiconductor diode, you find a low resistance in both the forward and reverse bias directions. This indicates that the diode has a/an ____________. A. open B. short C. good resistive quality D. good capacitive quality

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What is the typical back-to-forward resistance ratio of a good-quality diode?

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As a rule of thumb, what is an acceptable ratio of back-to forward resistance for a diode?

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Forward current through a semi-conductor diode circuit is due to ________ (a) Minority carriers (b) majority carriers (c) holes (d) electrons

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A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is also in series with the diode. The current is a. 10 mA b. 9.3 mA c. 0.7 mA d. 0

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Avalanche breakdown in a diode occurs when a. Potential barrier is reduced to zero. b. Forward current exceeds certain value. c. Reverse bias exceeds a certain value. d. None of these

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Define dynamic resistance of diode. State, how it is calculated using forward characteristics of diode.

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Define i)P-N junction diode ii) Depletion layer iii)Forward bias iv)Reverse bias of P-N junction diode

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Explain the forward bias characteristics of a P-N Junction diode.

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Last Answer : forward and reverse characteristics of P-N junction diode.

To turn a UJT ON, the forward bias on emitter diode should be:

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Last Answer : To turn a UJT ON, the forward bias on emitter diode should be: more than the peak point voltage 

How much time a diode takes to switch ON in forward bias

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

Last Answer : t=0 sec.

can zener diode be used in forward bias?

Last Answer : Yes it can be, and it will act like a normal PN junction diode. The characteristic of ZENER diode is exactly same as PN junction diode in forward Bias.

The light emitted diodes consist of:

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Last Answer : The light emitted diodes consist of: GaAs 

In which of these is reverse recovery time nearly zero?

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Last Answer : In which of these is reverse recovery time nearly zero? (1) Zener diode (2) Tunnel diode (3) Schottky diode (4) PIN diode

Assume that D1 and D2 in figure are ideal diodes. The value of current I is

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Barrier potential in a P-N junction is caused by

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Last Answer : Barrier potential in a P-N junction is caused by migration of minority carriers across the junction