Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revisionBoth sides next revision | ||
184_notes:examples:week2_conducting_insulating_balls [2017/08/24 23:43] – [Example: Attempting to Charge Insulators by Induction] tallpaul | 184_notes:examples:week2_conducting_insulating_balls [2018/01/22 00:43] – tallpaul | ||
---|---|---|---|
Line 1: | Line 1: | ||
- | ===== Example: | + | ===== Attempting to Charge Insulators by Induction ===== |
- | In the notes on [[184_notes: | + | In the notes on [[184_notes: |
- | {{ 184_notes: | + | |
- | Is it possible to charge a pair of insulators using induction? Why or why not? | + | |
===Facts=== | ===Facts=== | ||
- | * Electrons in an insulator are tightly bound to the nucleus. | + | * Electrons in an insulator are tightly bound to the nucleus, so the atoms can polarize but charges |
- | * Charges | + | |
- | ===Lacking=== | + | ===Representations=== |
- | * An explanation for whether it is possible to charge a pair of insulators using induction. | + | * From the notes, we can pull a representation for how we would charge // |
+ | {{ 184_notes: | ||
+ | * We can model the atoms in an insulator as little ovals (like the one below), that show when one side of the atom is more positive or negative than the other side. When ovals are not shown, this will just mean the atoms are not polarized. | ||
+ | {{ 184_notes: | ||
+ | |||
+ | ===Goal=== | ||
+ | * Create an explanation for whether it is possible to charge a pair of insulators using induction. | ||
+ | |||
+ | ====Solution==== | ||
===Approximations & Assumptions=== | ===Approximations & Assumptions=== | ||
- | * We are talking about pure insulators, so we can use the facts listed. | + | * We will use the same induction process as we did for conductors. |
- | * By pure insulators, | + | * The insulators |
- | * By induction, we mean the process shown in the figure from the notes. | + | |
- | ===Representations=== | ||
- | * We can model the atoms in an insulator as little ovals, that show when one side of the atom is more positive or negative than the other side. When ovals are not shown, this will just mean the atoms are not polarized. | ||
- | * We can use a similar diagram as the induction figure in the notes, since we assume it is the same process. | ||
- | ====Solution==== | + | We show the analogous " |
- | yeas | + | |
+ | {{ 184_notes: | ||
+ | |||
+ | The critical difference between conductors and insulators is that electrons can flow from one conductor to the other, but for insulators the electrons are bound to their nuclei. Because of this, the insulators do not charge by induction. |