4.5. Electric Current

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Where to Move

Move chapter:

• ☰ 1. Introduction
• ☰ 2. Mechanics
  • ☰ 2.1. Kinematics
    • ☰ 2.1.1. Distance & Displacement
    • ☰ 2.1.2. Speed & Velocity
    • ☰ 2.1.3. Acceleration
    • ☰ 2.1.4. General Equation of Motion
      • ☰ 2.1.4.1. Free Fall & Vertical Throw
      • ☰ 2.1.4.2. Horizontal Throw
      • ☰ 2.1.4.3. Projectile Motion
  • ☰ 2.2. Dynamics
    • ☰ 2.2.1. Newton's Laws
    • ☰ 2.2.2. Momentum
    • ☰ 2.2.3. Work & Energy
      • ☰ 2.2.3.1. Potential Energy
      • ☰ 2.2.3.2. Kinetic Energy
      • ☰ 2.2.3.3. Energy Conservation
      • ☰ 2.2.3.4. Power
  • ☰ 2.3. Hooke's Law
  • ☰ 2.4. Rotation
    • ☰ 2.4.1. Angular Velocity
    • ☰ 2.4.2. Centripetal Force
  • ☰ 2.5. Collisions
    • ☰ 2.5.1. Central Inelastic Collision
    • ☰ 2.5.2. Central Elastic Collision
  • ☰ 2.6. Appearant Forces
  • ☰ 2.7. Rigid Bodies
    • ☰ 2.7.1. Center of Gravity
    • ☰ 2.7.2. Torque
    • ☰ 2.7.3. Rotational Energa & Moment of Inertia
    • ☰ 2.7.4. Angular Momentum
    • ☰ 2.7.5. Steiner's Theorem
    • ☰ 2.7.6. Comparison Rotation & Translation
  • ☰ 2.8. Friction
    • ☰ 2.8.1. Static Friction
    • ☰ 2.8.2. Kinetic Friction
    • ☰ 2.8.3. Rolling Friction
    • ☰ 2.8.4. Air Resistance
  • ☰ 2.9. Real Bodies
    • ☰ 2.9.1. Elongation
    • ☰ 2.9.2. Compression
    • ☰ 2.9.3. Shear
    • ☰ 2.9.4. Torsion
  • ☰ 2.10. Gravitation
• ☰ 3. Oscillations & Waves
  • ☰ 3.1. Harmonic Oscillations
    • ☰ 3.1.1. Spring Pendulum
    • ☰ 3.1.2. Simple Pendulum
    • ☰ 3.1.3. Physical Pendulum
    • ☰ 3.1.4. Damped Oscillations
    • ☰ 3.1.5. Forced Oscillations
    • ☰ 3.1.6. Fourier Analysis
  • ☰ 3.2. Waves
    • ☰ 3.2.1. Wave Function & Wave Equation
    • ☰ 3.2.2. Beats
    • ☰ 3.2.3. Standing Waves
    • ☰ 3.2.4. Doppler Effect
    • ☰ 3.2.5. Ultrasound and Sonar
• ☰ 4. Electrodynamics
  • ☰ 4.1. Electrostatics
  • ☰ 4.2. Electric Field
    • ☰ 4.2.1. Induction
    • ☰ 4.2.2. Polarisation
  • ☰ 4.3. Coulomb's Law
  • ☰ 4.4. Potential and Voltage
  • ☰ 4.5. Electric Current
    • ☰ 4.5.1. Health Impact
    • ☰ 4.5.2. Current Direction
    • ☰ 4.5.3. Current Strength
    • ☰ 4.5.4. Electric Resistance
      • ☰ 4.5.4.1. Ohm's Law
      • ☰ 4.5.4.2. Specific Resistance
      • ☰ 4.5.4.3. Temperature Dependence
      • ☰ 4.5.4.4. Conductance
      • ☰ 4.5.4.5. Semiconductors
    • ☰ 4.5.5. Electric Power
    • ☰ 4.5.6. Kirchhoff's Rules
      • ☰ 4.5.6.1. Junction Rule
      • ☰ 4.5.6.2. Loop Rule
    • ☰ 4.5.7. Liquids & Gases
      • ☰ 4.5.7.1. Conduction in Gases
      • ☰ 4.5.7.2. Electrolysis
      • ☰ 4.5.7.3. Galvanic Cells
      • ☰ 4.5.7.4. Batteries & Accumulators
    • ☰ 4.5.8. Thermoelectricity
  • ☰ 4.6. Magnetic Fields
    • ☰ 4.6.1. Ampère's Law
    • ☰ 4.6.2. Magnetization
    • ☰ 4.6.3. Lorentz Force
    • ☰ 4.6.4. Mass Spectrometer
    • ☰ 4.6.5. Hall Effect
    • ☰ 4.6.6. Induction
    • ☰ 4.6.7. Lenz's Law
  • ☰ 4.7. Electrical Circuits
    • ☰ 4.7.1. Voltage Sources
    • ☰ 4.7.2. Measuring Voltage & Current
      • ☰ 4.7.2.1. Measuring Instruments
      • ☰ 4.7.2.2. Wheatstone Bridge Circuit
    • ☰ 4.7.3. Capacitor
      • ☰ 4.7.3.1. Capacitance
      • ☰ 4.7.3.2. Charging and Discharging
      • ☰ 4.7.3.3. Energy
      • ☰ 4.7.3.4. Displacement Current
    • ☰ 4.7.4. Coil
      • ☰ 4.7.4.1. Inductance
      • ☰ 4.7.4.2. Self-Induction
      • ☰ 4.7.4.3. Energy
    • ☰ 4.7.5. Semiconductor Devices
      • ☰ 4.7.5.1. Doping
      • ☰ 4.7.5.2. Diode
      • ☰ 4.7.5.3. Transistor
    • ☰ 4.7.6. Circuits
      • ☰ 4.7.6.1. Series Connection
      • ☰ 4.7.6.2. Parallel Connection
      • ☰ 4.7.6.3. Mixed Circuits
• ☰ 5. Thermodynamics
  • ☰ 5.1. States of Matter
  • ☰ 5.2. Phase Transitions
  • ☰ 5.3. Partial Pressure
  • ☰ 5.4. Thermal Expansion
  • ☰ 5.5. Heat Capacity
  • ☰ 5.6. Mixing Temperature
  • ☰ 5.7. Melting and Evaporation
  • ☰ 5.8. Hydrostatic Pressure
  • ☰ 5.9. Buoyancy
  • ☰ 5.10. Surface Tension
  • ☰ 5.11. Interfaces
  • ☰ 5.12. Flowing Liquids
    • ☰ 5.12.1. Volume Flow
    • ☰ 5.12.2. Bernoulli Equation
    • ☰ 5.12.3. Viscosity
    • ☰ 5.12.4. Hagen–Poiseuille Law
  • ☰ 5.13. Gases
    • ☰ 5.13.1. Ideal Gas
      • ☰ 5.13.1.1. Gas Laws
        • ☰ 5.13.1.1.1. Law of Boyle-Mariotte
        • ☰ 5.13.1.1.2. Law of Guy-Lussac
        • ☰ 5.13.1.1.3. Law of Amontons
      • ☰ 5.13.1.2. Ideal Gas Equation
      • ☰ 5.13.1.3. Kinetic Gas Theory
      • ☰ 5.13.1.4. Internal Energy
      • ☰ 5.13.1.5. Maxwell-Boltzmann Distribution
    • ☰ 5.13.2. Real Gases
    • ☰ 5.13.3. First Law of Thermodynamics
    • ☰ 5.13.4. Adiabatic Processes
    • ☰ 5.13.5. Entropy
    • ☰ 5.13.6. Second Law of Thermodynamics
    • ☰ 5.13.7. Diffusion & Fick's Law
    • ☰ 5.13.8. Osmosis
    • ☰ 5.13.9. Heat Transfer
      • ☰ 5.13.9.1. Heat Conduction
      • ☰ 5.13.9.2. Convection
      • ☰ 5.13.9.3. Thermal Radiation