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a) Describe in words and/or mathematical symbols how to calculate the electric flux. You may use...

a) Describe in words and/or mathematical symbols how to calculate the electric flux. You may use an example.

b) Describe in words and/or mathematical symbols the law of Gauss for electrostatics. You may use an example.

c) What is the purpose of Gauss’ law in electrostatics and why is it useful?

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