nec報名截止日期還有一個月，nec競賽難嗎？
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2023香港AP考點10月13日正式開放報名！
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Edexcel A Level Physics:復習筆記8.3 Thermionic Emission
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Edexcel A Level Physics:復習筆記8.2 The Nuclear Model of the Atom
Alpha Particle Scattering Evidence for the structure of the atom was discovered by Ernest Rutherford in the beginning of the 20th century from the study of?alpha?particle scattering This structure ...
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Nucleon & Proton Number Atomic symbols are written in a specific notation as shown below: Atomic symbols show the proton number and nucleon number The top number A represents the?nucleon...
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Root-Mean-Square Current & Potential Difference The root-mean-square (rms) current?Irms?is defined by the equation: Where: I0?=?peak current?(A) The rms voltage?Vrms?is defined by the eq...
Edexcel A Level Physics:復習筆記7.21 Alternating Currents & Potential Differences
Alternating Currents & Potential Differences An alternating current (a.c) is defined as: A current which periodically varies between a positive and negative value This means the direction of an...
Edexcel A Level Physics:復習筆記7.20 Faraday's Law
Faraday's Law Faraday's Law connects the?rate?of change of?flux linkage?with induced e.m.f It is defined in words as: The magnitude of the induced e.m.f is directly proportional to the rate of chan...
美國Top 10大學專業排名發布，附對應AP科目和院校推薦
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