Physics, asked by sarthakshukla3707, 8 months ago

a wire has a length of 20 cm and its resistance is 50 ohms .The wire is stretched in such a way that the new resistance becomes 60 ohms .then find the change in length

Answers

Answered by TheDarkMask

1

Is 30 cm is the answer???

Answered by mritsha21

1

Answer:

use the formula row=R x L/A

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