Cùng học ngoại ngữ: 3. Electricity

Static Charges Điện tích tĩnh Electrons can move more easily in some objects than in others. If you put a charge on things like glass, plastic,...

Faraday Basics Cơ sở định luật FaradayFaraday's law of induction is one of the important concepts of electricity. It looks at the way changing...

Electricity Separating Charges Tách điện tích Atoms start out with the same number of negative charges (electrons), and positive charges...

An Alternating Current Dòng điện xoay chiều There are two main types of current in our world. One is direct current (DC), which is a constant...

A Direct Current Dòng điện một chiều There are two main types of current in our world. One is direct current (DC) which is a constant stream of...

What is a Magnet? Nam châm là gì? A magnet is an object or a device that gives off an external magnetic field. Basically, it applies a...

Coulomb Basics Căn bản về định luật Coulomb (Cu-lông) Coulomb's Law is one of the basic ideas of electricity in physics. The law looks...

Resisting Current Cản trở dòng điệnThe collisions between electrons and atoms in a conductor cause resistance to the flow of charge. We measure that...

Usable Current Dòng điện dùng được There are two main kinds of electric current, direct current (DC) and alternating current (AC). They...

Spaces Between Atoms Khoảng trống giữa các nguyên tử Everything that is matter can conduct electricity, but not everything does it well....

Current and Heat Dòng điện và nhiệt One of the results of current is the heating of the conductor. When an electric stove heats up, it's...

Flowing Electrons Điện tử chạy Electric current is very similar to a flowing river. The river flows from one spot to another and the...

Magnetic Field Basics Căn bản về từ trường Magnetic fields are different from electric fields. Although both types of fields are...

Electric Fields Điện trường An electric field describes the funky area near any electrically-charged object. Scientists don’t use the...

Field Basics Căn bản về trường Scientists understood why forces acted the way they did when objects touched. The idea that confused them...

Force of Charges Lực điện tích Scientists discovered that opposite charges attract, and like charges repel. So positive-positive and...

Let Them Move Hãy để chúng chuyển động So what happens if you have separated charges and you connect them with conducting material? Providing...

Electricity Conductors and Conductivity Chất dẫn (điện, nhiệt) và tính dẫn (điện, nhiệt) There are many materials that allow charges to...

Electricity Around You Điện quanh ta It's easy to see the uses of electricity around you. In fact, there are charges around your computer, your...

Electricity Moving Electrons and Charges Điện tử và điện tích di chuyển Electricity is related to charges, and both electrons and...