Edexcel IGCSE Physics 复习笔记 7.1.2 Isotopes
Edexcel IGCSE Physics 复习笔记 7.1.2 Isotopes Isotopes Although the number of protons in a particular element is always the same, the number of neutrons can be different Isotopes are atoms o...
Edexcel IGCSE Physics 复习笔记 6.2.4 Transformer Equations
Edexcel IGCSE Physics 复习笔记 6.2.4 Transformer Equations The Transformer Equation The output potential difference (voltage) of a transformer depends on: The number of turns on the primary ...
Edexcel IGCSE Physics 复习笔记 6.2.3 Transformers
Edexcel IGCSE Physics 复习笔记 6.2.3 Transformers Transformers A transformer is an electrical device that can be used to increase or decrease the potential difference of an alternating curre...
Edexcel IGCSE Physics 复习笔记 6.2.2 Generators & Dynamos
Edexcel IGCSE Physics 复习笔记 6.2.2 Generators & Dynamos Generators & Dynamos The generator effect can be used to: Generate a.c in an generator Generate d.c in a dynamo  ...
Edexcel IGCSE Physics 复习笔记 6.2.1 Electromagnetic Induction
Edexcel IGCSE Physics 复习笔记 6.2.1 Electromagnetic Induction Electromagnetic Induction Electromagnetic (EM) induction is used to generate electricity EM induction is when: A voltage...
Edexcel IGCSE Physics 复习笔记 6.1.10 Magnetic Force on a Charge
Edexcel IGCSE Physics 复习笔记 6.1.10 Magnetic Force on a Charge Magnetic Force on a Charge When a current-carrying wire is placed in a magnetic field, it will experience a force if the wire...
Edexcel IGCSE Physics 复习笔记 6.1.9 Magnetic Field Patterns
Edexcel IGCSE Physics 复习笔记 6.1.9 Magnetic Field Patterns Magnetic Field Patterns Magnetic field line patterns are all slightly different around: Straight wires Flat circular coils Soleno...
Edexcel IGCSE Physics 复习笔记 6.1.8 Electromagnets
Edexcel IGCSE Physics 复习笔记 6.1.8 Electromagnets Electromagnets When an electric current flows in a wire it creates a magnetic field around the wire By winding the wire into a coil we can...
Edexcel IGCSE Physics 复习笔记 6.1.7 Fleming's Left-Hand Rule
Edexcel IGCSE Physics 复习笔记 6.1.7 Fleming's Left-Hand Rule Fleming's Left-Hand Rule The direction of the force (aka the thrust) on a current carrying wire depends on the direction of the ...
