AQA A Level Physics复习笔记7.5.3 Work Done on a Charge
Work Done on a Charge When a mass with charge moves through an electric field, work is done The work done in moving a charge q is given by: ∆W = q∆V Where: ∆W = change in work done (J) q = c...
AQA A Level Physics复习笔记7.5.2 Graphical Representation of Electric Potential
Graphical Representation of Electric Potential Electric field strength, E and the electric potential, V can be graphically represented against the distance from the centre of a charge, r E, ...
AQA A Level Physics复习笔记7.5.1 Electric Potential
Electric Potential In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between them Similarly, to move a positive charg...
AQA A Level Physics复习笔记7.4.7 Comparing Gravitational & Electrostatic Forces
Electric Potential In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between them Similarly, to move a positive charg...
AQA A Level Physics复习笔记7.4.7 Comparing Gravitational & Electrostatic Forces
Gravitational v Electrostatic Forces The similarities and differences between gravitational and electrostatic forces are listed in the table below: Table Comparing G and E Fields The ...
AQA A Level Physics复习笔记7.4.6 Radial Electric Field
Electric Field of a Point Charge The electric field strength describes how strong or weak an electric field is at that point A point charge produces a radial field A charge sphere also acts ...
AQA A Level Physics复习笔记7.4.5 Motion of Charged Particles
Motion of Charged Particles in an Electric Field A charged particle in an electric field will experience a force on it that will cause it to move If a charged particle remains still in a uni...
AQA A Level Physics复习笔记7.4.4 Uniform Electric Field
Uniform Electric Field Strength The magnitude of the electric field strength in a uniform field between two charged parallel plates is defined as: Where: E = electric field strength (V m-1) ...
AQA A Level Physics复习笔记7.4.3 Electric Field Strength
Electric Field Strength Definition An electric field is a region of space in which an electric charge “feels” a force The electric field strength at a point is defined as: The electrostatic ...
