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| 184_notes:examples:week2_conducting_insulating_balls [2018/05/17 16:37] – [Example: Attempting to Charge Insulators by Induction] curdemma | 184_notes:examples:week2_conducting_insulating_balls [2021/01/25 00:25] (current) – bartonmo |
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| We show the analogous "induction with insulators" with a step-by-step representation below. We knew from the facts that electrons cannot move freely between insulators, which is one of the key differences between insulators and conductors. At time $t=t_0$, both of the insulating balls start out as neutral. At time $t=t_1$, when the connected balls are moved close the charged object, the atoms in the insulators would polarize, but the electrons are not free to move further or to move from one ball to the next. This means when the insulating balls are separated at $t=t_2$, there are two polarized but overall neutral balls. As the balls are pulled farther away from the positive charge, they become less and less polarized, eventually returning to the same state that they were before at $t=t_0$ (neutral, not polarized). | We show the analogous "induction with insulators" with a step-by-step representation below. We knew from the facts that electrons cannot move freely between insulators, which is one of the key differences between insulators and conductors. At time $t=t_0$, both of the insulating balls start out as neutral. At time $t=t_1$, when the connected balls are moved close the charged object, the atoms in the insulators would polarize, but the electrons are not free to move further or to move from one ball to the next. This means when the insulating balls are separated at $t=t_2$, there are two polarized but overall neutral balls. As the balls are pulled farther away from the positive charge, they become less and less polarized, eventually returning to the same state that they were before at $t=t_0$ (neutral, not polarized). |
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| {{ 184_notes:inducing_insulators.png?300 |Induction with Insulators}} | [{{ 184_notes:inducing_insulators.png?300 |Induction with Insulators}}] |
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| 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. | |
| | //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.// |