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What is density?

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What is density?

Posted by Naina Chauhan 4 years, 6 months ago

CBSE > Class 12 > Geography

2 answers

Priya Shaw 4 years, 6 months ago

Density refers to the ratio between number to people to the size of land.

Yogita Ingle 4 years, 6 months ago

Current density is defined as current flowing per unit area provided the area is held normal to the current.
Current density is a property which describes at a specific point of the conductor.
Consider a conductor and to know what amount of current is flowing through a particular point of the conductor at particular time.
Not only the magnitude but the orientation of the area plays an important role.
It is denoted by J.
J=I/A where A=area vector
It is a vector quantity.
Current density changes as the orientation of the area changes.

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