Electrostatics Flashcards
what is electrostatics
the study of stationary charges
state the law of charge
charge cannot be created nor destroyed only transferred from one object to another
what is the concept of charge
regarded as an excess of electrons (negative charge) or a deficiency of electrons (positive charge)
what is tribo-electric charging
charging by rubbing together 2 objects that are non-conductive
state the law of conservation of electric charge
the net charge of isolated system remains constant during any physical process
what is the principle of charge quantization
an object has an electric charge which is an integer multiple of the elementary charge
state coulombs law
two points in air or free space exert forces on each other, the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges
name the 2 types of charge
positive-protons
negative-electrons
what does it mean when an object is neutral
equal number of positive charges (protons) and negative charges (electrons) meaning no net charge (neutral)
mass number is also known as…
the nucleon number
what happens when you try charge a conductor
charge will be grounded you can only charge an insulator
state the first law of charge
like charges repel and unlike charges attract
what is the SI unit of charge
coulombs
when will a distortion of charges occur
when a charged object attracts an uncharged object
what is coulombs constant (k)
9x10to the power of nine
