23. Electrostatics Flashcards
What are the two types of charges?
electron as a negative charge and proton as a positive charge.
What is a charge?
Charge is quantize, meaning it comes in discrete (non breakable) amounts.
What is the value of the elementary charge?
1.60 x 10-19 C
How can you calculate the total charge of something?
Total charge = Integer number * e
What is the symbol for charge?
q
What is the SI unit for charge?
Coulomb (C)
What does like charges do that unlike charges don’t?
Like charges repel and unlike charges attracts.
What does a positive charged object has? Additionally, What does a neutrally charged object has? Finally, what does a negatively charged object has? in terms of protons and electrons.
A positive charged object has more protons than electrons. A neutrally charged object has the same protons and electrons, Lastly, negatively charged object has more electrons than protons.
Why do insulators does not allow the flow of charge?
Because in insulators, electrons are bound in “orbit” to the nucleus in each atom. i.e. the valence electrons are tightly bound, However, it still moves a little but.
Why do conductors, like metal, allow the flow of charge?
Because unlike insulators, conductors allows the valence electrons to move freely because of its relatively low electronegativity, or attractions to electrons.
Can I move protons to make a positively charged object?
NO! However you can lose electrons to have a positively charged object.
Explain Polarization.
Polarization is the separation of charges on a neutral object; thus, it leaves the other side of an object negatively charged, and the other side positively charged.
Explain charging by friction.
Charging an object using friction occur when two objects are rubbed together, one gives up electrons and becomes positively charged, while other gains electrons and becomes negatively charged.
Explain charging by conduction.
Charging by conduction happens when a charged conductor wakes contact with a neutral conductor, there is a transfer of charge.
Explain charging by induction
Charging by Induction uses the influence of one object to coerce charge flow.
