p-n Junction Diode - Forward and Reverse Bias Characteristics

IMPORTANT

p-n Junction Diode - Forward and Reverse Bias Characteristics: Overview

This topic covers concepts, such as, Forward Biasing of Junction Diode, Reverse Biasing of Junction Diode, Zener Breakdown & Expression for Variation of Current with Voltage of P-N Junction Diode etc.

Important Questions on p-n Junction Diode - Forward and Reverse Bias Characteristics

HARD
IMPORTANT

Which of the following circuit diagram of pn junction diode is (i) forward bias and in (ii) reverse bias:
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EASY
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The breakdown mechanism in a lightly doped P-N junction under reverse biased condition is called _____ breakdown.

EASY
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Low doping required for Avalanche breakdown in diodes. 

EASY
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The breakdown that occurs in reverse bias conditions in a narrow junction diode is known as

MEDIUM
IMPORTANT

Pick out the incorrect statement regarding reverse saturation current in the p-n junction diode.

EASY
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 The reverse saturation current in a p-n junction diode is due to only the;

EASY
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Is reverse saturation current dependent upon the change in temperature ? Explain.​

MEDIUM
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What is reverse saturation current in diode ? Why it is temperature dependent ?

MEDIUM
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Currents flowing in each of the following circuits A and B respectively are

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EASY
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Identify the semiconductor devices whose characteristics are given below, in the order a, b, c, (d):

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EASY
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The forward-biased diode connection among the following is:

MEDIUM
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Ge & Si diodes conduct at knee voltage 0.3 V & 0.7 V respectively. If Ge diode connection are reversed, then value of V0 changes by x V, what is the value of 10x?

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MEDIUM
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In the circuit shown in figure, find the magnitude of maximum potential difference (in V) between A & B?

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MEDIUM
IMPORTANT

Calculate the value of output voltage V0 (in V)(to the closest integer) if the Si diode and Ge diode conduct at 0.7 V and 0.3 V respectively as shown in figure.

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MEDIUM
IMPORTANT

Two identical PN junction are joined in series with a battery shown below. For which potential drop is same.

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MEDIUM
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The circuit contains two diodes each with a forward resistance of 50 Ω and with infinite reverse resistance. If the battery voltage is 6 V, the current through the 120 Ω resistance is mA.

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EASY
IMPORTANT

Two identical p-n junctions may be connected in series with a battery in three ways. The potential difference across the two p-n junctions are equal in

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EASY
IMPORTANT

The circuit shown below contains two ideal diodes, each with a forward resistance of 50 Ω. If the battery voltage is 6 V, the current through the 100 Ω resistance (in amperes) is:
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