IB DP Physics: HL復習筆記11.3.4 The Time Constant
The Time Constant The time constant of a capacitor discharging through a resistor is a measure of how long it takes for the capacitor to discharge The definition of the time constant is: The time t...
IB DP Physics: HL復習筆記11.3.3 Capacitors in Series & Parallel
Capacitors in Series & Parallel Capacitors can be combined in series and parallel circuits The combined?capacitance?depends on whether the capacitors are connected in series or parallel Capacit...
IB DP Physics: HL復習筆記11.3.2 Dielectric Materials
Dielectric Materials Permittivity is the measure of how easy it is to generate an electric field in a certain material The relativity permittivity?εr?is sometimes known as the?dielectric constant F...
IB DP Physics: HL復習筆記11.3.1 Capacitance
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails They are in the form of two conductive metal pl...
IB DP Physics: HL復習筆記11.2.9 Capacitors & Diode Bridges
Capacitors & Diode Bridges In?rectification, to produce a steady?direct current? or voltage from an?alternating current??or voltage, a?smoothing capacitor?is necessary Smoothing is defined as: ...
IB DP Physics: HL復習筆記11.2.8 Rectification
Rectification Rectification is defined as: The process of converting?alternating current??and voltage into?direct current??and voltage Rectification is used in electronic equipment which requires a...
IB DP Physics: HL復習筆記11.2.7 Investigating Diode Bridges
Investigating Diode Bridges Aim of the Experiment The aim of the experiment is experimentally verify a half-bridge rectifier will produce partial DC output from AC input and a full wave bridge rect...
美國數學競賽amc比賽時間2022公布，還有時間準備!
每年都有30多萬學生參加，AMC什么來源？AMC屬于數學學術活動，參與量大，在競爭中取得優異的成績不僅可以作為數學方向的額外分數，而且在申請科學、工程、經濟和商業方面也有一定的作用。這是學生改善背景的最佳...
IB DP Physics: HL復習筆記11.2.6 Diode Bridges
Diode Bridges Most electronic devices cannot use alternating current, they require direct current instead This is possible by use of a?rectifier Rectifiers convert alternating current (ac) to direc...
IB DP Physics: HL復習筆記11.2.5 AC Electrical Power Distribution
AC Electrical Power Distribution Energy losses due to the heating of transmission lines in national power grids are?significant This is because the electrical energy is transmitted across long dist...
IB DP Physics: HL復習筆記11.2.4 Transformer Calculations
Transformer Calculations The transformer equation is: Where: Ns?= number of turns in the secondary coil Np?= number of turns in the primary coil εs?= output voltage from the secondary coil (V) εp?=...
被牛津劍橋錄取學生參加什么競賽項目？
無論是英國牛劍還是美國藤校，科研學術活動都是招生官審核和面試的重要組成部分，也是申請人能否獲得學校offer關鍵參考因素。被牛津劍橋錄取學生參加什么學術活動項目？簡單來說，參加學科學術活動可以幫助你在學...
