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MCAT Chemical and Physical Foundations of Biological Systems

Electricity and Magnetism

Learn Electricity and Magnetism in MCAT Chemical and Physical Foundations of Biological Systems from the production AIPH study guide.

Study guide topics

Kinematics and MotionForces and Newton's LawsWork, Energy, and PowerThermodynamics and HeatElectricity and MagnetismFluids and PressureWaves, Sound, and LightAtomic and Nuclear PhysicsMedical Imaging and DiagnosticsBiomechanics and Human MovementEnergy Use and Everyday TechnologyMastering MCAT Physics QuestionsTime Management and Guessing Smart

Advanced Topics

In a nutshell: Electricity and magnetism explain how charges and currents interact to power technology and life.

## The Forces That Power the Modern World Electricity and magnetism are two sides of the same coin, describing how charged particles interact and create fields. ### Key Concepts - **Coulomb's Law**: The force between two charges. - **Ohm's Law**: Relationship between voltage, current, and resistance (\( V = IR \)). - **Magnetic Fields**: Created by moving charges (currents). ### Real-World Wonders Every time you use a phone, a computer, or even your heart beats, electricity and magnetism are at work. ### MCAT Focus Know how circuits work (series and parallel), the right-hand rule for magnetic fields, and the basic math of electric forces. ### Applications - MRI machines use magnetic fields to image the body. - Defibrillators use electric pulses to restart the heart.

V = IR

Examples

  • A defibrillator delivering a lifesaving shock.
  • Using a magnet to move iron filings on paper.

Key terms

Current
The flow of electric charge.
Voltage
The potential difference that drives current.
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