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A neutral metal can is mounted on a foam stand. A positively

charged balloon is brought near. The can is touched on the

opposite side.

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Answer:

Negative

Positive

Explanation:

When a positive charge balloon is brought near the neutral metal can, the positive charge in the ballon, delocalization and arrangement of like charges occurs. The positive charge then flow to the an end while the negative charges flows to the other end.

Thus, after being touched, the charge on the can is negative.

And, If not touched, the charge on the ballon remains positive.

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After being touched, the charge on the can is negative and the charge on the balloon is positive.

What is charging by friction?

When the two materials are rubbed each other, then the electric charged generated between them.

This charging of materials due to the rubbing or two materials against each other, is called the charging by friction.

This force of attraction or repulsion is identified by the sign of the particular charge. According to the property of interacting charges-

  • Like charges-For the like charges, when two charges same charges (positive-positive or negative -negative) interact to each other, then the charges repel each other.
  • Unlike charges-For the unlike charges, when two charges interact to each other, then the charges attract each other.

Here, the neutral metal can is mounted on a foam stand. A positively charged balloon is brought near. The can is touched on the opposite side.

The positive charge on the balloon, make it to lose the electron. By this, the balloon become positively charged.

The atom on the opposite side have an excess of electron. Thus, the can become negatively charged.

Hence, after being touched, the charge on the can is negative and the charge on the balloon is positive.

Learn more about the charging by friction here;

https://brainly.com/question/8418256

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