signed in as Lutrell Hunt case Ch30bMW stretching the A-Rod previous l 11 of 15
ID: 1300225 • Letter: S
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signed in as Lutrell Hunt case Ch30bMW stretching the A-Rod previous l 11 of 15 l next Stretching the A-Rod Submit Hints My Answers Give Up Review Part Learning Goal: To loan to apply the concept of ourrent density Part B The rod is now stretched so that its length is doubled lfthe electric seld remains the same. whatis the new and microscopic Ohms law. A slab of metal of volume V is made into a rod of current in the rod? length L The lod cames aument I when the Express your answer in terms of some or all of the quantities given in the problem introduction electric seld inside is E Submit Hints My Answers Give Up Review Part Part C Apiece of oopper is made into a rod with a square cross section Tho side of the square is 2.00 centimeters The Electric X session masteringphysics.com/myct/itemview?assignmentProblemID 43275601&offse; 3)Explanation / Answer
The expression E for this problem is given as E =Voltage/L = IR/L
E = I*row*L/AL = I*row/A = I*row*L/V
That means I is inversely proportional to L when E is constant
If L doubles then I will be Halfed
Therefore Inew = I/2
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