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