Problem 1 A piece of material with a square cross-section measuring 1 mm on each side has a length of 1 m. a. What is the resistance of this material if it were made of aluminum? b. Calculate the current through each piece of material if a potential difference of 1 volt is applied over its length.

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Chapter24: Magnetic Fields
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Problem 1
A piece of material with a square cross-section measuring 1 mm on each side has a length of
1 m.

a. What is the resistance of this material if it were made of aluminum?

b. Calculate the current
through each piece of material if a potential difference of 1 volt is applied over its length.

 
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