A plastic rod is rubbed with a cloth and becomes positively charged. After charging, the rod is held close to the suspended tabl
e-tennis ball shown in Fig. 9.1. The table-tennis ball is covered with metal paint and is uncharged.
Describe what happens to the charges on the metal-painted table-tennis ball as the positively-charged rod is brought close to the ball.
Describe what happens to the charges on the metal-painted table-tennis ball as the positively-charged rod is brought close to the ball.
1 answer:
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The equivalent gravitational force is ~
We know that ~
where,
- F = gravitational force
= mass of 1st object = 500 kg
= mass of 2nd object = 20kg
- G = gravitational constant =
- r = distance between the objects = 2.12 m
Let's calculate the force ~