Share
VIDEOS 1 TO 50
Henry (unit)
Henry (unit)
Published: 2014/11/17
Channel: Audiopedia
Henry (unit)
Henry (unit)
Published: 2016/01/22
Channel: WikiAudio
150717 Always Cantare2 HENRY Food Truck Support by Henry Unit
150717 Always Cantare2 HENRY Food Truck Support by Henry Unit
Published: 2016/05/30
Channel: HenryLauFP
Fire Emblem Awakening - Female Avatar (My Unit) & Henry Support Conversations
Fire Emblem Awakening - Female Avatar (My Unit) & Henry Support Conversations
Published: 2013/03/14
Channel: justonegamr
E1D Henry Unit 2
E1D Henry Unit 2
Published: 2017/10/26
Channel: gokhanozmar
Unit Starters The explorers Story[Super Minds 3 by Henry Sonthuy]
Unit Starters The explorers Story[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
E5C Henry Unit 2
E5C Henry Unit 2
Published: 2017/03/30
Channel: gokhanozmar
E3B Henry Unit 7
E3B Henry Unit 7
Published: 2013/10/22
Channel: gokhanozmar
E6B Henry Unit 2
E6B Henry Unit 2
Published: 2015/10/15
Channel: gokhanozmar
E4B Henry Unit 1
E4B Henry Unit 1
Published: 2014/02/13
Channel: gokhanozmar
E3B Henry Unit 6
E3B Henry Unit 6
Published: 2013/10/03
Channel: gokhanozmar
E6B Henry Unit 6
E6B Henry Unit 6
Published: 2016/03/03
Channel: gokhanozmar
Harley Nunney X Callum Evans X Henry Downe/couple days at unit
Harley Nunney X Callum Evans X Henry Downe/couple days at unit
Published: 2018/02/08
Channel: Harley's Media
E6A Henry Unit 7
E6A Henry Unit 7
Published: 2016/03/31
Channel: gokhanozmar
Henry - Unit 8 - Decribe a picture
Henry - Unit 8 - Decribe a picture
Published: 2014/05/29
Channel: Giao tiếp công việc Sáu chín Mshoatoeic
Unit 1 At school Story [Super Minds 1 by Henry Sonthuy]
Unit 1 At school Story [Super Minds 1 by Henry Sonthuy]
Published: 2016/01/05
Channel: Sơn Thuỷ Nguyễn
Converting Metric Units using King Henry
Converting Metric Units using King Henry
Published: 2013/02/20
Channel: SmithMathAcademy
Henry - Unit 10
Henry - Unit 10
Published: 2014/06/10
Channel: Giao tiếp công việc Sáu chín Mshoatoeic
Unit 7 In the hospital Song[Super Minds 3 by Sonthuy Henry]
Unit 7 In the hospital Song[Super Minds 3 by Sonthuy Henry]
Published: 2016/01/11
Channel: Sơn Thuỷ Nguyễn
Unit 5 Under the sea Story[Super Minds 3 by Henry Sonthuy]
Unit 5 Under the sea Story[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Unit 3.2 Convert Parts to Units 2014 Henry Park Prelim Paper 2 Qn 18
Unit 3.2 Convert Parts to Units 2014 Henry Park Prelim Paper 2 Qn 18
Published: 2015/05/16
Channel: Math with Van
Moses Henry & The Unit Live @ Thankful The E.P Launch 2017
Moses Henry & The Unit Live @ Thankful The E.P Launch 2017
Published: 2017/09/21
Channel: Richie Mr.Fearless Stanisclaus
E4B Henry Unit 2
E4B Henry Unit 2
Published: 2014/03/05
Channel: gokhanozmar
E5C Henry Unit 4
E5C Henry Unit 4
Published: 2017/05/25
Channel: gokhanozmar
Unit 6 The old house Story [Super Minds 1 by Henry Sonthuy]
Unit 6 The old house Story [Super Minds 1 by Henry Sonthuy]
Published: 2016/01/05
Channel: Sơn Thuỷ Nguyễn
E6B Henry Unit 4
E6B Henry Unit 4
Published: 2015/12/10
Channel: gokhanozmar
E5C Henry Unit 1
E5C Henry Unit 1
Published: 2017/03/02
Channel: gokhanozmar
Unit Friends The Alphabet [Super Minds 1 by Henry Sonthuy]
Unit Friends The Alphabet [Super Minds 1 by Henry Sonthuy]
Published: 2016/01/05
Channel: Sơn Thuỷ Nguyễn
Bible Study - Experiencing God By Henry Blackaby Unit One
Bible Study - Experiencing God By Henry Blackaby Unit One
Published: 2015/09/17
Channel: Greater Harvest Holiness Church
Unit plan lesson "Henry Hudson"
Unit plan lesson "Henry Hudson"
Published: 2013/12/17
Channel: Caitlin Rezin
Unit 10 Henry bakaly
Unit 10 Henry bakaly
Published: 2016/05/03
Channel: Henry Bakaly
Energy Unit Standards Defense Henry Wallace
Energy Unit Standards Defense Henry Wallace
Published: 2017/11/20
Channel: Henry Wallace
Henry - Unit 5 - The ugly Duckling
Henry - Unit 5 - The ugly Duckling
Published: 2014/05/22
Channel: Giao tiếp công việc Sáu chín Mshoatoeic
Fort Henry Self Storage - Unit 293
Fort Henry Self Storage - Unit 293
Published: 2017/05/31
Channel: Bid13
PSLE Maths | Unit Transfer Method #0001 | Work Backwards | Henry Park P6 SA1 2016 Q18
PSLE Maths | Unit Transfer Method #0001 | Work Backwards | Henry Park P6 SA1 2016 Q18
Published: 2017/05/18
Channel: Maths Heuristics
why henry is clearly the best unit in heroes
why henry is clearly the best unit in heroes
Published: 2017/10/07
Channel: StarEmblemSSB
Unit 3 Daily tasks Story[Super Minds 3 by Henry Sonthuy]
Unit 3 Daily tasks Story[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Unit 8 Around the world Story[Super Minds 3 by Henry Sonthuy]
Unit 8 Around the world Story[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Unit 1| Disaster | Story | Super Minds 5 by Henry Sonthuy
Unit 1| Disaster | Story | Super Minds 5 by Henry Sonthuy
Published: 2016/05/06
Channel: Sơn Thuỷ Nguyễn
Unit 9 Holiday plans Story[Super Minds 3 by Henry Sonthuy]
Unit 9 Holiday plans Story[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Henry and Catherine sweet bright corner unit 2 bedroom
Henry and Catherine sweet bright corner unit 2 bedroom
Published: 2017/04/28
Channel: DOWNTOWN MGT RAY BART
Unit 9 Holiday plans Song[Super Minds 3 by Henry Sonthuy]
Unit 9 Holiday plans Song[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Unit 4 Lunchtime Story [Super Minds 1 by Henry Sonthuy]
Unit 4 Lunchtime Story [Super Minds 1 by Henry Sonthuy]
Published: 2016/01/05
Channel: Sơn Thuỷ Nguyễn
Unit 9 | Mystery at sea | Story | Super Minds 5 by Henry Sonthuy
Unit 9 | Mystery at sea | Story | Super Minds 5 by Henry Sonthuy
Published: 2016/05/13
Channel: Sơn Thuỷ Nguyễn
Unit 6 Gadgets Story[Super Minds 3 by Sonthuy Henry]
Unit 6 Gadgets Story[Super Minds 3 by Sonthuy Henry]
Published: 2016/01/11
Channel: Sơn Thuỷ Nguyễn
Henry P4 unit 4
Henry P4 unit 4
Published: 2017/12/01
Channel: Ryan Dean
Unit 6 Gadgets Song[Super Minds 3 by Henry Sonthuy]
Unit 6 Gadgets Song[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
Fort Henry Self Storage Unit 390
Fort Henry Self Storage Unit 390
Published: 2016/06/21
Channel: Bid13
E5C Henry Unit 3
E5C Henry Unit 3
Published: 2017/04/27
Channel: gokhanozmar
Unit 8 Around the world Song[Super Minds 3 by Henry Sonthuy]
Unit 8 Around the world Song[Super Minds 3 by Henry Sonthuy]
Published: 2016/03/13
Channel: Sơn Thuỷ Nguyễn
NEXT
GO TO RESULTS [51 .. 100]

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Henry
Inductor.jpg
An inductor composed of a wire wound around a magnetic core used to confine and guide the induced magnetic field.
Unit information
Unit system SI derived unit
Unit of Inductance
Symbol H 
Named after Joseph Henry
In SI base units: kgm2s−2A−2

The henry (symbol: H) is the SI derived unit of electrical inductance.[1] The unit is named after Joseph Henry (1797–1878), the American scientist who discovered electromagnetic induction independently of and at about the same time as Michael Faraday (1791–1867) in England.[2]

Definition[edit]

The inductance of an electric circuit is one henry when an electric current that is changing at one ampere per second results in an electromotive force of one volt across the inductor:

,

where V(t) denotes the resulting voltage across the circuit, I(t) is the current through the circuit, and L is the inductance of the circuit.

The henry is a derived unit based on four of the seven base units of the International System of Units: kilogram (kg), metre (m), second (s), and ampere (A). Expressed in combinations of SI units, the henry is:[3]

in which the following additional derived units occur: coulomb (C), farad (F), joule (J), weber (Wb), tesla (T), volt (V), hertz (Hz), and ohm (Ω).

Use[edit]

The International System of Units (SI) specifies to write the symbol of a unit named for a person with an initial capital letter, while the name is not capitalized in sentence text, except when any word in that position would be capitalized, such as at the beginning of a sentence or in material using title case.

The United States National Institute of Standards and Technology recommends users writing in English to use the plural as henries.[4]:31

Applications[edit]

The inductance of a coil depends on its size, the number of turns, and the permeability of the material within and surrounding the coil. Formulas can be used to calculate the inductance of many common arrangements of conductors, such as parallel wires, or a solenoid. A small air-core coil used for broadcast AM radio tuning might have an inductance of a few tens of microhenries. A large motor winding with many turns around an iron core may have an inductance of scores or hundreds of henries. The physical size of an inductance is also related to its current carrying and voltage withstand ratings.

See also[edit]

References[edit]

  1. ^ Rowlett, Russ. "How Many? A Dictionary of Units of Measurement". University of North Carolina at Chapel Hill. 
  2. ^ Herbert S. Bailey, Jr. "A Princeton Companion". 
  3. ^ "Essentials of the SI: Base & derived units". The NIST Reference on Constants, Units and Uncertainty. National Institute of Standards and Technology. 
  4. ^ Ambler Thompson & Barry N. Taylor (2008). "NIST Special Publication 811: Guide for the Use of the International System of Units (SI)" (PDF). National Institute of Standards and Technology. Retrieved 2013-03-21. 

Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license