OCR A level Physics: Electric Fields

OCR A level Physics: Chapter 22 Electric Fields is apart of the Module 6: Particle and Medical Physics

All presentations come with worked examples, solutions and homeworks.

22.1 Electric Fields
22.2 Coulomb’s Law
22.3 Uniform electric fields and capacitance
22.4 Charged particles in uniformed electric fields
22.5 Electric potential and energy

• Electric field line pattern from point charges, uniformly charged objects, and capacitors.
• Rules for electric field lines
• Interacting field lines for attraction and repulsion
• Detecting electric fields with a charged gold leaf
• Definition of electric field strength
• Explaining that electric field strength is a vector with magnitude and direction
• Apply the equation for electric field strength
• Electric force related to the product of charge and square of the separation
• The constant of proportionality 𝑘
• Permittivity of free space
• Experiment for investigating Coulomb’s Law
• Electric Field Strength and Coulomb’s Law
• Liquid crystal displays (LCDs)
• Electric field between two charged parallel plates
• Deriving an equation for electric field strength of a parallel plate capacitor.
• Accelerating charged particles in a uniformed electric field
• Capacitance of a parallel plate capacitor with an insulating (dielectric) material - relative permittivity
• Millikan’s experiment
• Equations for constant acceleration
• Maximum kinetic energy of a charged particle in a uniformed field
• Sketching trajectories for charged particles in uniformed fields
• Calculating velocities for horizontal and vertical components
• Definition of electric potential energy
• Definition of electric potential.
• Definition of electric potential difference.
• Using a force-distance graph to determine electric potential energy
• Using electron-volts and joules in calculations
• Capacitance of an isolated charged sphere