From 767bef7baec59f434eff3c7b466f3f5124d12d07 Mon Sep 17 00:00:00 2001 From: tactonbishop Date: Tue, 30 Aug 2022 09:30:04 +0100 Subject: [PATCH] Last Sync: 2022-08-30 09:30:04 --- .../Physics_of_electricity/Electromagnetism.md | 6 +++++- Electronics/Physics_of_electricity/Voltage.md | 7 +++++-- markdown-styles.css | 11 +++++++++++ 3 files changed, 21 insertions(+), 3 deletions(-) create mode 100644 markdown-styles.css diff --git a/Electronics/Physics_of_electricity/Electromagnetism.md b/Electronics/Physics_of_electricity/Electromagnetism.md index 0ecec20..b145cc8 100644 --- a/Electronics/Physics_of_electricity/Electromagnetism.md +++ b/Electronics/Physics_of_electricity/Electromagnetism.md @@ -6,4 +6,8 @@ tags: [physics, electricity, electromagnetism] # Electromagnetism -// TODO: Add explanation of the relationship between electricity and magnetism and the underlying physics. +For a long time electricity and magnetism were thought to be separate forces. In the 19th century Maxwell demonstrated that they were interrelated phenomena then Einstein proved with the Special Theory of Relativity that they are aspects of one unified phenomenon. + +The core of the relationship is that a changing magnetic field produces an electric field and conversely, a changing electric field produces a magnetic field. + +https://www.britannica.com/science/electromagnetism diff --git a/Electronics/Physics_of_electricity/Voltage.md b/Electronics/Physics_of_electricity/Voltage.md index 3583ea4..c8a28b1 100644 --- a/Electronics/Physics_of_electricity/Voltage.md +++ b/Electronics/Physics_of_electricity/Voltage.md @@ -10,13 +10,15 @@ tags: [physics, electricity] We noted in the discussion of [current](/Electronics/Physics_of_electricity/Current.md) that current flows when there is difference of potential between two points with negatively charged atoms at one point and positively charged atoms at the other. -'Difference of potential' is the same thing as voltage. We use the term 'voltage' to denote the potential for current to flow. Voltage is essential to current because it is the force that enables the current to flow. +'Difference of potential' is the same thing as voltage. We use the term 'voltage' to denote the propensity for charge to flow from one place to another. Voltage is essential to current because it is the force that enables the current to flow. + +## Distinguishing _voltage_ from _electric field_ Without voltage there can be no current because in their natural state, the electrons in an atom are in random motion with no direction. To produce a current, energy must be imparted to the electrons so that they all flow in the same direction. Voltage is the application of this energy. Any form of energy that dislodges electrons from atoms can be used to produce current. -> It is important to realise that in this process energy is not 'created', rather there is a transfer of energy from one form to another. The force applied to generate the current is energy in one form that is converted to another form: electrical current. +> It is important to realise that in this process energy is not 'created', rather there is a transfer of energy from one form to another. The force applied to generate the currThe Expanse Season 4 ## Distinguishing _voltage_ from _electric field_ @@ -43,6 +45,7 @@ Energy in these states can be transformed into energy as current. We will review Magnetism is used the voltage source in electrical generators by far the most common method of producing powerful and large currents at scale. If a conductive wire is passed through a magnetic field voltage will be produced so long as there is motion between the magnetic field and the conductor. A **generator** is a device that generates current in this manner. Generators themselves need to be powered. They can be powered by steam from a nuclear power plant, water, wind, coal or other fossil fuels. +The Expanse Season 4 #### AC/DC diff --git a/markdown-styles.css b/markdown-styles.css new file mode 100644 index 0000000..35814d8 --- /dev/null +++ b/markdown-styles.css @@ -0,0 +1,11 @@ +* { + font-family: 'Inter'; +} + +pre, code { + font-family: 'Liga Liberation Mono' !important; +} + +code { + font-family: 'Liga Liberation Mono' !important; +} \ No newline at end of file