Physics, asked by cuttee, 1 year ago

resistance of a wire is 10 ohm. what will be the required change in the length of it to increase its resistance to 1000 Ohm ?



please answer with explanation and proper steps

Answers

Answered by Anonymous
3
see the abovementioned image.
Attachments:

Anonymous: happy to help. : )
cuttee: hey but will area be the same
Anonymous: yes ,here area must be the same.
cuttee: i don't think so because if length changes area too changes
cuttee: but i got it
Anonymous: area changes when wire is stretched, here wire is not stretched
cuttee: if volume is taken instead of area
cuttee: but it's not specified that wire is not stretched
Anonymous: in question,it is asked that what will be the length of a wire with 1000ohm,not asking for the same wire.
cuttee: yeah but...if we take l^2 / volume then it will be solved
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