Asked by vanditha
A wire of nichrome of length 80cm has a resistance of 50 ohms. if the wire is four folded, find new resistance.
Answers
Answered by
Steve
not sure what "four folded" means.
If you mean the cross-section area is multiplied by 4, then the resistance is divided by 4.
If the diameter is multiplied by 4, then the resistance is divided by 16
If the length is multiplied by 4, then also the resistance.
If you mean the cross-section area is multiplied by 4, then the resistance is divided by 4.
If the diameter is multiplied by 4, then the resistance is divided by 16
If the length is multiplied by 4, then also the resistance.
Answered by
Aditya
0.
3125
3125
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