Asked by Anonymous
                How does the resistance of a piece of metal change if both its length and its diameter are reduced to one half their original values?
.. im confused because i don't know what the shape of the metal is...please help!
            
        .. im confused because i don't know what the shape of the metal is...please help!
Answers
                    Answered by
            drwls
            
    Assume it is a wire (cylinder) and that current flows along the length. 
    
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