chapter 16 physica Flashcards
(11 cards)
What did Milliken’s oil drop experiment demonstrate about charge?
Occurs as multiples of e
How does the principle of conservation of charge apply when a balloon is rubbed on someone’s hair?
Balloon gains negative charge equal to the positive charge lost by the hair
What’s e and what’s its value
Charge of an electron
What’s the difference between conductors and insulators and give an example of each
Conductors charge flows easily through and metal
Insulator charge doesn’t flow easily through and plastic
What is a semiconductor and what does adding impurities do
Between conductor and insulator and makes it more easy for charge to flow through
What is a superconductor and what can it Do
Conduct indefinitely without heating and transmit energy without losses
Why is grounding and how does it allow to. To induce a charge on a conductor
Connects to Earth. Compulsive force redistribute negative charge
How can surface charge be induced on an insulator
Adding a charged object
Columb electrical force and distance
Inverse square. Divided by 4
How is the force on a single charge determined when more than 2 charges are present and what is this the principle of
Sum of charges. Super position
How is electric force a field force
Mediated by an electric field
