Draw the deflection of the needle, which way it moved, the location of positive and negative charges, and which way the charges moved for each of the following scenarios: 1) Rubbing PVC rod with wool to charge it negatively and then moving it close to the top of the electroscope disk without touching the disk with the rod. 2) Rubbing acrylic rod with silk to charge it positively and then moving it close to the top of the electroscope disk without touching the disk with the rod. 3) Touching charged PVC rod to disk and then moving the rod away. 4) Bringing the charged acrylic rod close to electroscope that was touched at the outset with the charged PVC rod. 5) Grounding electroscope then touching the edge of the disk with a grounded wire while concurrently bringing the charged PVC rod up close, but not touching, to the other side of the disk. Removing the grounding wire first and only then moving the PVC rod away.
Draw the deflection of the needle, which way it moved, the location of positive and negative charges, and which way the charges moved for each of the following scenarios:
1) Rubbing PVC rod with wool to charge it negatively and then moving it close to the top of the electroscope disk without touching the disk with the rod.
2) Rubbing acrylic rod with silk to charge it positively and then moving it close to the top of the electroscope disk without touching the disk with the rod.
3) Touching charged PVC rod to disk and then moving the rod away.
4) Bringing the charged acrylic rod close to electroscope that was touched at the outset with the charged PVC rod.
5) Grounding electroscope then touching the edge of the disk with a grounded wire while concurrently bringing the charged PVC rod up close, but not touching, to the other side of the disk. Removing the grounding wire first and only then moving the PVC rod away.
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