Two balloons have a negative charge. what happens when they are brought near each other?

they cause a static discharge.

they repel each other.

they have no effect on each other.

they attract each other.

Answer : The correct option is, They repel each other.

Explanation :

There are two types of charges which are positive and negative charge.

There are two conditions:

When the two bodies have like charges that means positive-positive or negative-negative then they repel each other.

When the two bodies have unlike charges that means positive-negative then they attract each other.

As per question, when two balloons have a negative charge that means they have like charges. So, they repel each other.

Hence, the correct option is, They repel each other.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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