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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: 22,279
    klug
    6th March 2007, 17:51 Go to last post

  1. [SOLVED] Why is CO2 a green house gas?

    Started by ljcox, Yesterday 10:46
    • Replies: 3
    • Views: 151
    andre_teprom
    Yesterday, 14:49 Go to last post

  2. Metal Semiconductor Contact

    Started by Robotduck, 20th August 2019 04:19
    • Replies: 1
    • Views: 593
    timof
    21st October 2019, 09:01 Go to last post

  3. Why all the applied Voltage appears across the Depletion Region ?

    Started by Robotduck, 19th October 2019 23:02
    • Replies: 6
    • Views: 364
    timof
    21st October 2019, 03:21 Go to last post

  4. Metal Oxide Semiconductor in strong Inversion

    Started by Robotduck, 24th August 2019 13:55
    2 Attachment(s)
    • Replies: 8
    • Views: 1,904
    timof
    17th October 2019, 22:49 Go to last post

  5. Magnetic flux conduit for flux concentration?

    Started by gbugh, 29th January 2019 15:22
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 21
    • Views: 4,626
    Precision99
    13th October 2019, 11:24 Go to last post

  6. Extracting energy from gyroscope precession

    Started by Precision99, 5th September 2019 05:30
    5 Pages •
    1 2 3 ... 5
    • Replies: 84
    • Views: 3,766
    Precision99
    2nd October 2019, 10:36 Go to last post

  7. How to get two Sweep and Repeat Generators in sync.

    Started by Tractor Beam, 1st October 2019 13:54
    1 Attachment(s)
    • Replies: 2
    • Views: 292
    BradtheRad
    2nd October 2019, 01:07 Go to last post

  8. Donors , Acceptors and Traps

    Started by Robotduck, 9th September 2019 00:58
    • Replies: 2
    • Views: 677
    dick_freebird
    9th September 2019, 19:15 Go to last post

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

    Started by Robotduck, 6th September 2019 11:16
    • Replies: 3
    • Views: 552
    c_mitra
    7th September 2019, 16:55 Go to last post

  10. dc motor theory question??? Maths

    Started by Harry.f123, 16th August 2019 20:47
    2 Attachment(s)
    • Replies: 4
    • Views: 735
    Precision99
    5th September 2019, 06:55 Go to last post

  11. [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: 711
    c_mitra
    25th August 2019, 06:28 Go to last post

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

    Started by Robotduck, 17th August 2019 04:04
    • Replies: 8
    • Views: 1,095
    c_mitra
    24th August 2019, 00:02 Go to last post

  13. EMI Absorption and Reflection

    Started by Zak28, 23rd August 2019 11:22
    • Replies: 0
    • Views: 268
    Zak28
    23rd August 2019, 11:22 Go to last post

  14. Rotary capacitor physics and design

    Started by Salvador12, 14th June 2019 07:24
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 33
    • Views: 4,565
    kripacharya
    20th June 2019, 20:46 Go to last post

  15. Integration by parts

    Started by Akshaay, 11th June 2019 10:31
    1 Attachment(s)
    • Replies: 1
    • Views: 628
    wwfeldman
    11th June 2019, 14:16 Go to last post

  16. feel of diffrential equations for Novice

    Started by curious_mind, 4th May 2019 03:56
    • Replies: 2
    • Views: 2,592
    wwfeldman
    6th May 2019, 02:55 Go to last post

  17. Algebraic System Response Equation into Circuit Design

    Started by EE_Quipped, 2nd May 2019 14:50
    • Replies: 2
    • Views: 1,192
    BigBoss
    2nd May 2019, 21:16 Go to last post

  18. Faraday disc voltage calculation formula

    Started by Salvador12, 8th April 2019 17:18
    7 Attachment(s)
    • Replies: 18
    • Views: 10,029
    Salvador12
    2nd May 2019, 20:58 Go to last post

  19. Closed: solving differential equations help

    Started by joniengr, 1st April 2019 09:26
    • Replies: 2
    • Views: 1,844
    _Eduardo_
    1st April 2019, 17:26 Go to last post

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

    Started by skatefast08, 30th September 2018 04:43
    • Replies: 2
    • Views: 1,815
    c_mitra
    17th March 2019, 01:11 Go to last post

  21. Closed: Tricky Algebra! Help

    Started by LeatherNeck, 21st February 2019 23:03
    2 Attachment(s)
    • Replies: 2
    • Views: 2,221
    LeatherNeck
    22nd February 2019, 00:40 Go to last post

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

    Started by LeatherNeck, 21st February 2019 22:10
    • Replies: 4
    • Views: 983
    LeatherNeck
    21st February 2019, 22:38 Go to last post

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

    Started by B4M, 21st January 2019 17:22
    • Replies: 0
    • Views: 980
    B4M
    21st January 2019, 17:22 Go to last post

  24. Closed: computing roots on a calculator

    Started by Zak28, 20th January 2019 02:15
    • Replies: 8
    • Views: 1,900
    FvM
    21st January 2019, 09:32 Go to last post

  25. Closed: Algorithm for Timetabling

    Started by sassyboy, 19th January 2019 00:21
    • Replies: 2
    • Views: 1,287
    Aussie Susan
    20th January 2019, 23:23 Go to last post

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

    Started by sassyboy, 12th January 2019 23:25
    • Replies: 4
    • Views: 1,515
    andre_teprom
    20th January 2019, 22:59 Go to last post

  27. Closed: Better understanding of capacitor charging

    Started by Kajunbee, 9th December 2018 17:48
    2 Pages •
    1 2
    • Replies: 22
    • Views: 4,704
    Ratch
    18th December 2018, 07:14 Go to last post

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

    Started by myjae, 4th December 2018 03:37
    2 Attachment(s)
    • Replies: 4
    • Views: 1,423
    KlausST
    4th December 2018, 07:28 Go to last post

  29. Closed: Coulomb Gauge vs. Lorenz Gauge

    Started by dzafar, 2nd December 2018 03:55
    • Replies: 0
    • Views: 756
    dzafar
    2nd December 2018, 03:55 Go to last post

  30. [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: 4,517
    Akanimo
    8th November 2018, 21:01 Go to last post
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