电流电路（Current circuit）.docVIP

电流电路（Current circuit） This article by little stupid child love onion contribution DOC documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. The fifth chapter, current and circuit review outline 1, charge 1, with electricity (friction): friction objects have attracted objects of light small objects of nature, we say that objects with electricity. Small objects of confetti, refers to hair, pith ball, dust, light lamps etc.. 2, the method of live objects: definition: electrically charged objects cause friction with the method of different material: atom ability of different electronic triboelectrification essence: charge transfer from one object to another object that can be separated into positive and negative charges: mechanical energy, electrical energy of the contact - charged objects and the charged body contact with electricity. If the charged body charged with the metal ball to contact electroscope. Inductive charged: because of the role of charged body, so that objects near the charged live. 3, two kinds of charge: positive charge: the electricity of the glass rod that has been rubbed with silk. Substance: the atoms in the material lose the electron negative charge: the electricity carried by the rubber rod that the fur has rubbed against. Substance: atoms in matter receive excess electrons, 4, and charge interactions: mutual charges repel each other, and exotic charges attract each other. 5, structure: electroscope metal ball, metal rod, metal foil: test whether an object is charged. Principle: the principle that mutual charges repel each other. 6, the amount of charge: definition: the number of charges, called electricity. Unit: Coulomb (C) * 10 C -19 1e=1.6 e, and 7 yuan charge: extended equal charges together to fully offset the phenomenon: if the object with positive and negative power range, will occur and phenomenon. At this time, a charged object is first neutr