Choose the correct statement about Zener diode:

It works as a voltage regulator in reverse bias and behaves like simple p-n junction diode in forward bias

It works as a voltage regulator in both forward and reverse bias

It works a voltage regulator only in forward bias

It works as a voltage regulator in forward bias and behaves like simple p-n junction diode in reverse bias

Match the List I with List II List I List II A Intrinsic Semiconductor I Fermi-level near valence band B n-type semiconductor II Fermi-level at middle of valence and conduction band C p-type semiconductor III Fermi-level near conduction band D Metals IV Fermi-level inside conduction band Choose the correct answer from the options given below:

(A) → II, (B) → III, (C) → I, (D) → IV

(A) → I, (B) → II, (C) → III, (D) → IV

(A) → II, (B) → I, (C) → III, (D) → IV

(A) → III, (B) → I, (C) → II, (D) → IV

Given below are two statements: Statement I : In a typical transistor, all three regions emitter, base and collector have same doping level. Statement II : in a transistor, collector is the thickest and base is the thinnest segment. In the light of the above statements, choose the most appropriate answer from the options given below.

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Given below are two statements Statement I : For transmitting a signal, size of antenna ( l ) should be comparable to wavelength of signal (at least l = λ 4 in dimension). Statement II : In amplitude modulation, amplitude of carrier wave remains constant (unchanged). In the light of the above statements, choose the most appropriate answer from the options given below

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is incorrect but Statement II is correct

MEDIUM

JEE Main

IMPORTANT

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The maximum and minimum voltage of an amplitude modulated signal are $60 V$ and $20 V$ respectively. The percentage modulation index will be

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Important Questions on Electronic Devices Semiconductors

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 22 - Electronic Devices Semiconductors>JEE Main - 26 July 2022 Shift 2>Q 184

The typical transfer characteristic of a transistor in CE configuration is shown in figure. A load resistor of $2 kΩ$ is connected in the collector branch of the circuit used. The input resistance of the transistor is $0.50 kΩ$ . The voltage gain of the transistor is

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