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<font class="font2">Indian Institute of Technology Kharagpur (IIT Kharagpur) is a public research university established by the government of India in Kharagpur, West Bengal, India. Established in 1951, the institute is the first of the IITs to be established and is recognised as an Institute of National Importance. In 2019 it was awarded the status of Institute of Eminence by the Government of India.[3]


Indian Institute of Technology Kharagpur

IIT Kharagpur Logo.svg

Motto

Yogaḥ karmasu kauśalam (Sanskrit)

Motto in English

Excellence in action is Yoga

Type

Public research university

Established

August 18, 1951; 71 years ago

Academic affiliations

Institute of National ImportanceInstitute of Eminence

Budget

₹634.50 crore (US$79 million)

(FY2020–21 est.)[1]

Chairman

R P Singh

Director

Virendra Kumar Tewari[2]

Academic staff

815 (2022)[1]

Administrative staff

1,500 (2022)[1]

Students

12,779 (2022)[1]

Undergraduates

2,972 (2022)[1]

Postgraduates

7,287 (2022)[1]

Doctoral students

2,520 (2022)[1]

Location

Kharagpur, West Bengal, India

Campus

Urban

2,100 acres (850 ha)

Language

Mostly English

Newspaper

The KGP Chronicle

Colours

  Blue

Nickname

IITians, KGPians

Website

www.iitkgp.ac.in Edit this at Wikidata

The institute was initially established to train engineers after India attained independence in 1947. However, over the years, the institute's academic capabilities diversified with offerings in management, law, architecture, humanities, etc. IIT Kharagpur has an 8.7-square-kilometre (2,100-acre) campus and has about 22,000 residents.</font>

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<font class="font2" size="4">A transistor is a semiconductor device used to amplify or switch electrical signals and power. The transistor is one of the basic building blocks of modern electronics.[1] It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more are found embedded in integrated circuits.



Size comparison of BJT transistor packages, from left to right: SOT-23, TO-92, TO-126, TO-3


Metal-oxide-semiconductor field-effect transistor (MOSFET), showing gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink).

Austro-Hungarian physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transistor in 1926, but it was not possible to actually construct a working device at that time.[2] The first working device to be built was a point-contact transistor invented in 1947 by American physicists John Bardeen and Walter Brattain while working under William Shockley at Bell Labs. The three shared the 1956 Nobel Prize in Physics for their achievement.[3] The most widely used type of transistor is the metal–oxide–semiconductor field-effect transistor (MOSFET), which was invented by Mohamed Atalla and Dawon Kahng at Bell Labs in 1959.[4][5][6] Transistors revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things.


Most transistors are made from very pure silicon, and some from germanium, but certain other semiconductor materials are sometimes used. A transistor may have only one kind of charge carrier, in a field-effect transistor, or may have two kinds of charge carriers in bipolar junction transistor devices. Compared with the vacuum tube, transistors are generally smaller and require less power to operate. Certain vacuum tubes have advantages over transistors at very high operating frequencies or high operating voltages. Many types of transistors are made to standardized specifications by multiple manufacturers.</font>

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Indian Institute of Technology Kharagpur (IIT Kharagpur) is a public research university established by the government of India in Kharagpur, West Bengal, India. Established in 1951, the institute is the first of the IITs to be established and is recognised as an Institute of National Importance. In 2019 it was awarded the status of Institute of Eminence by the Government of India.[3] Indian Institute of Technology Kharagpur IIT Kharagpur Logo.svg Motto Yogaḥ karmasu kauśalam (Sanskrit) Motto in English Excellence in action is Yoga Type Public research university Established August 18, 1951; 71 years ago Academic affiliations Institute of National ImportanceInstitute of Eminence Budget ₹634.50 crore (US$79 million) (FY2020–21 est.)[1] Chairman R P Singh Director Virendra Kumar Tewari[2] Academic staff 815 (2022)[1] Administrative staff 1,500 (2022)[1] Students 12,779 (2022)[1] Undergraduates 2,972 (2022)[1] Postgraduates 7,287 (2022)[1] Doctoral students 2,520 (2022)[1] Location Kharagpur, West Bengal, India Campus Urban 2,100 acres (850 ha) Language Mostly English Newspaper The KGP Chronicle Colours Blue Nickname IITians, KGPians Website www.iitkgp.ac.in Edit this at Wikidata The institute was initially established to train engineers after India attained independence in 1947. However, over the years, the institute's academic capabilities diversified with offerings in management, law, architecture, humanities, etc. IIT Kharagpur has an 8.7-square-kilometre (2,100-acre) campus and has about 22,000 residents.




A transistor is a semiconductor device used to amplify or switch electrical signals and power. The transistor is one of the basic building blocks of modern electronics.[1] It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more are found embedded in integrated circuits. Size comparison of BJT transistor packages, from left to right: SOT-23, TO-92, TO-126, TO-3 Metal-oxide-semiconductor field-effect transistor (MOSFET), showing gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). Austro-Hungarian physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transistor in 1926, but it was not possible to actually construct a working device at that time.[2] The first working device to be built was a point-contact transistor invented in 1947 by American physicists John Bardeen and Walter Brattain while working under William Shockley at Bell Labs. The three shared the 1956 Nobel Prize in Physics for their achievement.[3] The most widely used type of transistor is the metal–oxide–semiconductor field-effect transistor (MOSFET), which was invented by Mohamed Atalla and Dawon Kahng at Bell Labs in 1959.[4][5][6] Transistors revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. Most transistors are made from very pure silicon, and some from germanium, but certain other semiconductor materials are sometimes used. A transistor may have only one kind of charge carrier, in a field-effect transistor, or may have two kinds of charge carriers in bipolar junction transistor devices. Compared with the vacuum tube, transistors are generally smaller and require less power to operate. Certain vacuum tubes have advantages over transistors at very high operating frequencies or high operating voltages. Many types of transistors are made to standardized specifications by multiple manufacturers.

INTEGRAL