Electromagnetism: Induction, Materials, and Laws
Chapter 8: Electromagnetic Induction
Induced Current
The current induced in a coil conductor opposes the change that created it. If the magnetic flux has a negative derivative, the induced field will try to maintain the existing field by creating a field in the same direction. If the derivative is positive, the negative sign indicates that the induced field will oppose the change, preventing the field from growing.
Electromotive Force (EMF)
The first two terms of the EMF depend on the temporal variation
Read MoreIntroduction to Chemistry and Physics
Basic Chemistry Concepts
Common Acids and Formulas
Hydrofluoric acid: HF. Hydrochloric acid: HCl. Hydrobromic acid: HBr. Hydriodic acid: HI. Hydrogen sulfide: H2S. Chromic acid: H2CrO4. Manganic acid: H2MnO4. Permanganic acid: HMnO4. Chloric acid: HClO3.
Formulas of Organic Compounds
Empirical: Represents the simplest relationship between the atoms that form a molecule. (e.g., C2H5)
Molecular: Indicates the exact number of different atoms constituting the molecule of a substance. (e.g., C4H10)
Identifiers:
Read MoreUnderstanding Pulmonary Mechanics and Ventilation
Key Terms
- Ventilation
- Respiration
- Pressure Gradient
- Tidal Volume
- Pulmonary Mechanics
- Ventilation/Perfusion
- Compliance
- Resistance
- Flow
Assessment of Ventilation
- Respiratory Pattern (Rate and Depth)
- Oxygen and carbon dioxide influence rate and depth of respiration. CO2 is the primary stimulus.
- Accessory Muscle Use
- Prolonged Expiration
- Shortness of Breath
- Cyanosis
- Minute Ventilation
- ABG’s (Primarily CO2)
- Pulse Oximetry
- Capnography
- Transcutaneous Monitoring
Ventilation
- Negative Pressure
- Spontaneous Breathing
- Negative Pressure
The Evolution of Physics: From Aristotle to Galileo
ITEM 1: The Physical Throughout History
Aristotle’s Geocentric Model
Aristotle, one of the most influential figures in the history of physics, proposed a geocentric model of the universe. He believed that the Earth was stationary and located at the center of the universe, with the other planets, including the Sun, revolving around it in perfect circular orbits. This view was consistent with the Greek belief that the circle represented perfect motion and that the universe was finite.
Aristotle divided
Read MoreMagnetism and Earth’s Magnetic Field: A Comprehensive Guide
Magnetic Field
We can say that a magnetic field exists at a point near a magnetic source (current or magnetized bodies) if a force, due to the magnetic field, acts on a charged particle moving through this point.
Oersted argued that magnetic effects may occur due to the motion of electric charges, while Faraday and Henry argued that current can be obtained by moving magnets.
History of Electromagnetism
Part of the history of electromagnetism traces back to the Chinese, suggesting that it was known as
Read MoreSadi Carnot: Founder of Thermodynamics
Sadi Carnot
(1796–1832)
Nicolas Léonard Sadi Carnot (June 1, 1796 – August 24, 1832), usually called Sadi Carnot, was a French physicist and engineer who pioneered the study of thermodynamics. He is recognized today as the founder of thermodynamics.
Family and Early Life
He was the son of Lazare Carnot, known as the “Great Carnot,” and uncle of Marie François Sadi Carnot, who became President of the French Republic.
Reflections on the Motive Power of Fire
After graduating from the École Polytechnique
Read More