the resistance of a conducting wire x of length 1m is 5 ohm. Calculate the resistance of the wire made by the same material whose length is 4 times and area of cross section is 5 times that of wire X. (at same temperature).
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Answer:
Now, when length is 4 times and area is 5 times . Let , the new resistance is x . The resistance of wire X is 4 ohm . Hence , this is the required solution.
Answered by
0
Answer:
4Ω
Explanation:
Initial resistance for wire X = 5Ω = p(L/A)
Now, length of new wire = 4 times
Area of new wire = 5 times
Hence , new resistance be R"
R" = p(L"/A")
=> R" = p(4L/5A)
=> R" = p(L/A) × 4/5
=> R" = 5 × 4/5
=> R" = 4Ω
Therefore,
Resistance of the wire = 4Ω
Hope it helps!
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