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please answer this.............
A wire of resistance 100 ohm is stretched so that its length become 4 times its initial length.Then find out the new resistance. .........
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Answers
Answered by
1
R'=n*2 into R
Where R is resistance and n is number of turns
Therefore R'= 16 into 100 =1600
Answered by
0
Answer:
R = pl/A, where R is resistance, p is the material's resistance in ohms, l is the length, and A is the cross sectional area in m^2. As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases.
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