在標(biāo)化成績(jī)不具有最佳競(jìng)爭(zhēng)力的時(shí)候，要靠什么脫穎而出呢？對(duì)于想要申請(qǐng)牛劍G5等等名校的學(xué)生來(lái)說(shuō)，能在BPhO學(xué)術(shù)活動(dòng)中拿到獎(jiǎng)項(xiàng)，無(wú)疑就是證明物理類學(xué)術(shù)能力的有效途徑，且能夠幫助同學(xué)們打下很好的牛劍G5筆面試...
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails Capacitors do this by storing electric?charge, ...
轉(zhuǎn)眼開學(xué)已有一個(gè)多月，國(guó)內(nèi)各省市陸續(xù)發(fā)布新學(xué)期階段學(xué)習(xí)/考試等政策，和體制內(nèi)一樣，英國(guó)教育部也在“黃金九十月”發(fā)布GCSE最新政策。 9月下旬，英國(guó)教育部(Department of Education)和考試監(jiān)管機(jī)構(gòu)Ofqual(The Of...
Using Field Lines & Equipotential Diagrams The direction of electric fields is represented by?electric?field?lines Electric field lines are directed from positive to negative Therefore, the fie...
Electric Potential for a Radial Field Electric Potential Energy In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between th...
Electric Field between Parallel Plates The magnitude of the electric field strength in a?uniform?field between two charged parallel plates is defined as: Where: E?=?electric field strength?(...
Electric Field & Potential A positive test charge has electric?potential?energy?due to its position in an electric field The amount of electric potential energy depends on: The magnitude of cha...
AMC是美國(guó)數(shù)學(xué)思維活動(dòng)（American Mathematics Competitions）的簡(jiǎn)稱，是一項(xiàng)面向世界中學(xué)生的數(shù)學(xué)思維訓(xùn)練，目前每年全球有超過(guò)6000所學(xué)校的30萬(wàn)名學(xué)生參加該活動(dòng)，是當(dāng)今世界上最科學(xué)、最權(quán)威、最具信譽(yù)度的數(shù)...
Electric Field due to 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 lik...
