Pre-Lab Q2: A glass rod is rubbed with a piece of polyester. During the process

Question

Pre-Lab Q2: A glass rod is rubbed with a piece of polyester. During the process the glass rod acquires a positive charge and the polyester: acquires a positive charge also. acquires a negative charge. remains neutral. could either be positively charged or negatively charged. a. b. c. d. Pre-Lab Q3: A glass rod is rubbed with a nylon cloth. Use the triboelectric series in table 1 to determine which of these two objects gains electrons? a. Nylon b. Glass c. Both d. Neither Pre-Lab Q4: You rub a rod of glass with a cotton cloth, then dip the cloth into a Faraday pail like we will be using in lab. Will a charge sensor connected to the pail give a negative reading, or a positive reading or will it read essentially zero? a. Positive b. Negative c. Zero

Explanation / Answer

2.

a negative charge

3.

Neither

4.

zero

5.

electrons flow from the pipe to your hand because you are postively charged

6.

charging by induction

7.

spher B is now negatively charged

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