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Island Physics

DC circuits

Hamilton on a calm night.  The importance of electricity to our everyday lives is obvious.  A hundred years ago this would have been in darkness.
Home >> AP Physics I >> DC Circuits
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This unit covers the interaction of charged particles, such as electrons, and low voltage direct current circuits, which are common in cars, boats and battery operated equipment. 

Students are expected to be able to calculate the voltages across components, the current flowing through the circuits and the energy transferred per second.  Series and parallel circuits are considered, as combinations of both.  The difference between the terminal voltage of a cell and its emf is explained by considering the internal resistance of a cell, which is an important way of determining the "health" of a battery.

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  • 6 - 8% exam weighting for Multiple Choice questions
  • 9 - 12 lessons
  • HOME
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    • Forces and Motion
    • Energy and Energy Resources
    • Solids, Liquids and Gases
    • Waves
    • Astrophysics
    • Electricity
    • Magnetism
    • Nuclear Physics
    • IGCSE revision
  • Physics I
    • Kinematics >
      • Variables and Units
      • Describing Motion
      • Equations of Motion
      • Problem Solving
      • Projectiles
      • Kinematics Animations
    • Dynamics >
      • Forces
      • Static Equilibrium
      • Newton's Laws
      • Friction
      • Advanced Problems
    • Gravitation and Orbits >
      • Circular Motion
      • Vertical Circles
      • Universal Gravitation
      • Orbits
      • Circular Motion Animation
    • Energy >
      • Work
      • Springs
      • PE and KE
      • Conservation of Energy
      • Work-Energy Theorem
    • Linear Momentum >
      • Impulse
      • Conservation of Momentum
      • Types of Collision
      • 2-D Collisions
    • Simple Harmonic Motion >
      • Mass on Spring
      • Pendulums
      • SHM Animations
    • Rotational Mechanics >
      • Torque
      • Rotational Kinematics
      • Rotational Dynamics
      • Angular Momentum
      • Rotational Energy
    • Mechanical Waves >
      • Waves on a String
      • Sound
    • AP-1 Revision
    • AP Physics C (Mechanics)
  • Physics II
    • Fluid Mechanics
    • Thermal Physics
    • DC Circuits >
      • Voltage and Current
      • Resistance
      • Series and Parallel
      • Internal Resistance
    • Electrostatics
    • Magnetic Fields >
      • EM Induction
    • Interference and Diffraction
    • Optics
    • Modern Physics
    • AP 2 Revision
  • OCEANOGRAPHY
    • The World Ocean >
      • What is Oceanography
      • History
      • Lat and Long
      • Size and Origin
      • Plate Tectonics
    • Seawater >
      • A Salty Sea
      • Measuring Salinity
      • Thermal Properties
      • Density Profiles
      • Drinking Seawater
    • Circulation and Climate >
      • Global Heating
      • Coriolis Effect
      • Surface Currents
      • Vertical Motion
      • Thermohaline Circulation
      • El Nino
      • Carbon Cycle
    • Waves and Tides >
      • Wave Motion
      • Formation of Waves
      • Beaches
      • Tsunamis
      • Tides
    • Observation Systems >
      • Challenges
      • The CTD
      • Moorings
      • Sound Waves
      • Robotics
      • Satellites
    • Weather and Navigation >
      • Weather Systems
      • Weather Forecasting
      • Hurricanes
      • Navigation
      • Life at Sea
    • Oceans and Mankind >
      • Ocean Acidification
      • Pollution
      • Fish Stocks
      • Climate Change
      • Energy Resources
    • Atlantic Explorer Cruise
    • ROVs
  • COLLEGE
    • College Physics I
    • College Physics II
  • CONTACT