Question

Q1. What happens when you bring a charged glass rod near a charged suspended glass rod?
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2. What do you observe when a plastic rod rubbed against a woolen cloth is brought near the suspended glass rod?
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Answer 1

Answer:

1. A glass rod rubbed with silk gets a positive charge. ... Suspend a charged glass rod from a thread, and another charged glass rod repels it. A charged plastic rod, however, attracts it. This mysterious force is called the electric force.

2. Electrostatically charged rods. When you rub the plastic rod (polyethylene terephthalate, glycol modified, or PETG) with the wool cloth, the rod charges negative. When you rub the glass rod with the silk, the rod charges positive.