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Forum: Mathematics and Physics

From time to time everyone is faced with these problems.

  1. Sticky Thread Sticky: ALL E-BOOKS HERE WILL BE DELETED!!! USERS WILL BE WARNED !!!

    Started by klug, 6th March 2007 17:51
    • Replies: 0
    • Views: 22,053
    klug
    6th March 2007, 17:51 Go to last post

  1. Extracting energy from gyroscope precession

    Started by Precision99, 5th September 2019 05:30
    3 Pages •
    1 2 3
    • Replies: 52
    • Views: 1,362
    Precision99
    Today, 13:50 Go to last post

  2. Donors , Acceptors and Traps

    Started by Robotduck, 9th September 2019 00:58
    • Replies: 2
    • Views: 514
    dick_freebird
    9th September 2019, 19:15 Go to last post

  3. [SOLVED] Energy Band Model and Energy bond Model

    Started by Robotduck, 6th September 2019 11:16
    • Replies: 3
    • Views: 366
    c_mitra
    7th September 2019, 16:55 Go to last post

  4. dc motor theory question??? Maths

    Started by Harry.f123, 16th August 2019 20:47
    2 Attachment(s)
    • Replies: 4
    • Views: 567
    Precision99
    5th September 2019, 06:55 Go to last post

  5. Metal Oxide Semiconductor in strong Inversion

    Started by Robotduck, 24th August 2019 13:55
    2 Attachment(s)
    • Replies: 7
    • Views: 1,521
    dick_freebird
    30th August 2019, 06:41 Go to last post

  6. [SOLVED] Is Fermi level in Metals- constant ? and how do Quasi Fermi levels in PN junctions ?

    Started by Robotduck, 23rd August 2019 16:21
    • Replies: 5
    • Views: 550
    c_mitra
    25th August 2019, 06:28 Go to last post

  7. Potential Energy and Kinetic Energy of an Electron in an Energy Band diagram

    Started by Robotduck, 17th August 2019 04:04
    • Replies: 8
    • Views: 815
    c_mitra
    24th August 2019, 00:02 Go to last post

  8. EMI Absorption and Reflection

    Started by Zak28, 23rd August 2019 11:22
    • Replies: 0
    • Views: 183
    Zak28
    23rd August 2019, 11:22 Go to last post

  9. Metal Semiconductor Contact

    Started by Robotduck, 20th August 2019 04:19
    • Replies: 0
    • Views: 332
    Robotduck
    20th August 2019, 04:19 Go to last post

  10. Rotary capacitor physics and design

    Started by Salvador12, 14th June 2019 07:24
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 33
    • Views: 4,195
    kripacharya
    20th June 2019, 20:46 Go to last post

  11. Integration by parts

    Started by Akshaay, 11th June 2019 10:31
    1 Attachment(s)
    • Replies: 1
    • Views: 527
    wwfeldman
    11th June 2019, 14:16 Go to last post

  12. feel of diffrential equations for Novice

    Started by curious_mind, 4th May 2019 03:56
    • Replies: 2
    • Views: 2,473
    wwfeldman
    6th May 2019, 02:55 Go to last post

  13. Algebraic System Response Equation into Circuit Design

    Started by EE_Quipped, 2nd May 2019 14:50
    • Replies: 2
    • Views: 1,088
    BigBoss
    2nd May 2019, 21:16 Go to last post

  14. Faraday disc voltage calculation formula

    Started by Salvador12, 8th April 2019 17:18
    7 Attachment(s)
    • Replies: 18
    • Views: 9,591
    Salvador12
    2nd May 2019, 20:58 Go to last post

  15. solving differential equations help

    Started by joniengr, 1st April 2019 09:26
    • Replies: 2
    • Views: 1,725
    _Eduardo_
    1st April 2019, 17:26 Go to last post

  16. Closed: Does the wave equation only apply to waves with low frequency?

    Started by skatefast08, 30th September 2018 04:43
    • Replies: 2
    • Views: 1,697
    c_mitra
    17th March 2019, 01:11 Go to last post

  17. Closed: Tricky Algebra! Help

    Started by LeatherNeck, 21st February 2019 23:03
    2 Attachment(s)
    • Replies: 2
    • Views: 2,108
    LeatherNeck
    22nd February 2019, 00:40 Go to last post

  18. [SOLVED]Closed: Polar To Rectangular on the calculator, error

    Started by LeatherNeck, 21st February 2019 22:10
    • Replies: 4
    • Views: 854
    LeatherNeck
    21st February 2019, 22:38 Go to last post

  19. Closed: Magnetic flux conduit for flux concentration?

    Started by gbugh, 29th January 2019 15:22
    • Replies: 5
    • Views: 2,408
    FvM
    30th January 2019, 17:47 Go to last post

  20. Closed: On the use of 'operator' term!!

    Started by B4M, 21st January 2019 17:22
    • Replies: 0
    • Views: 900
    B4M
    21st January 2019, 17:22 Go to last post

  21. Closed: computing roots on a calculator

    Started by Zak28, 20th January 2019 02:15
    • Replies: 8
    • Views: 1,710
    FvM
    21st January 2019, 09:32 Go to last post

  22. Closed: Algorithm for Timetabling

    Started by sassyboy, 19th January 2019 00:21
    • Replies: 2
    • Views: 1,173
    Aussie Susan
    20th January 2019, 23:23 Go to last post

  23. Closed: Medical Physics - Alpha Radiation Highly Ionizing: Why is it dangerous?

    Started by sassyboy, 12th January 2019 23:25
    • Replies: 4
    • Views: 1,372
    andre_teprom
    20th January 2019, 22:59 Go to last post

  24. Closed: Better understanding of capacitor charging

    Started by Kajunbee, 9th December 2018 17:48
    2 Pages •
    1 2
    • Replies: 22
    • Views: 4,378
    Ratch
    18th December 2018, 07:14 Go to last post

  25. Closed: power (W) sum of series & parallel circuit.

    Started by myjae, 4th December 2018 03:37
    2 Attachment(s)
    • Replies: 4
    • Views: 1,292
    KlausST
    4th December 2018, 07:28 Go to last post

  26. Closed: Coulomb Gauge vs. Lorenz Gauge

    Started by dzafar, 2nd December 2018 03:55
    • Replies: 0
    • Views: 684
    dzafar
    2nd December 2018, 03:55 Go to last post

  27. [SOLVED]Closed: Initial and final energy stored in a capacitor

    Started by sassyboy, 5th November 2018 12:42
    2 Pages •
    1 2
    6 Attachment(s)
    • Replies: 20
    • Views: 4,201
    Akanimo
    8th November 2018, 21:01 Go to last post

  28. Closed: what is the value of ϴ0?

    Started by moon1989, 5th November 2018 18:35
    1 Attachment(s)
    • Replies: 1
    • Views: 662
    FvM
    5th November 2018, 22:48 Go to last post

  29. Closed: Capacitance question

    Started by sassyboy, 5th November 2018 12:34
    2 Attachment(s)
    • Replies: 5
    • Views: 1,255
    Ratch
    5th November 2018, 17:58 Go to last post

  30. Closed: What is the meaning of Skin Depth?

    Started by dzafar, 2nd November 2018 00:02
    • Replies: 1
    • Views: 989
    KlausST
    2nd November 2018, 07:34 Go to last post
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