Physics, asked by nomy09, 1 year ago

a wire of resistance 3ohm and length 10 cm is tretched to 30 cm assuming that it has a uniform cross section ,is resistance

Answers

Answered by nishujha9292
0

What are you asking for???



nomy09: what will be its new resistance
nishujha9292: Ok
nishujha9292: I guess it will be 9ohm as resistance is directly proportional to length
nomy09: answer in book is given 27
nishujha9292: OK let's wait for others to answer
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