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Permanently Charging the Electroscope By Induction Using a Positively Charged Rod

title. Permanently Charging the Electroscope By Induction Using a Positively Charged Rod. Click here to see “traditional” grounding at the knob. Click here to see “easier-to- understand” grounding at the leaves. Start off with a neutral electroscope:. Scene 1.

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Permanently Charging the Electroscope By Induction Using a Positively Charged Rod

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  1. title Permanently Charging the Electroscope By Induction Using a Positively Charged Rod

  2. Click here to see “traditional” grounding at the knob Click here to see “easier-to- understand” grounding at the leaves

  3. Start off with a neutral electroscope: Scene 1

  4. Start off with a neutral electroscope: How will the particles respond when a positively charged rod is brought near the knob? What will the protons do? What will the electrons do?

  5. Scene 3 Scene 2 To permanently charge by induction, connect a ground to the electroscope while the charged rod is near the knob. Once connected, which way will the electrons travel through the ground? The protons ___________ since they are locked up inside the nucleus. did not move (from the leaves to the ground or from the ground to the leaves) Electrons travel from the ground to the leaves Some of the “free to move” electrons ________________ the positively charged rod. Why do the leaves repel? Hit up arrow to go back Like charges repel. moved upward toward

  6. Is the overall charge on the knob positive, negative, or neutral? The overall charge on the knob is negative. To permanently charge by induction, which should be removed first? (click on one) charged rod Ground wire Are the leaves positive, negative, or neutral? The leaves are neutral. Hit up arrow to go back

  7. The overall charge on the knob is negative. The knob is neutral. To permanently charge by induction, which should be removed first? (click on one) charged rod Try again! If the charged rod is removed first, then the extra electrons would escape from the electroscope through the ground wire. The leaves are neutral. Hit up arrow to go back

  8. Scene 4 The overall charge on the knob is negative. To permanently charge by induction, which should be removed first? (click on one) The ground wire must be removed before the charged rod. Ground wire The leaves are neutral. Hit up arrow to go back

  9. Scene 5 negatively charged knob Finally, the extra electrons in the knob distribute themselves throughout the electroscope as the charged rod is pulled away. negatively charged leaves Hit up arrow to go back Like charges repel.

  10. However, what was the final charge on the electroscope when charged this time? The final charge on the electroscope was negative when charged by induction using the positively charged rod. Recall: Was the rod used positively or negatively charged? The rod used this time was positively charged. (make a note of this)

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