A wire with 15 ohm resistance is stretched by one tenth of its original length and kept volume of wire constant . then its resistance will be
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Hi friend here is your answer.
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We know, R'=n^2R
Where, R'=New resistance
R=Previous Resistance
n=length increased by how many times
By using shortcut formula,
R'=1/100×15=0.15 ohm ans
####################
#####################
We know, R'=n^2R
Where, R'=New resistance
R=Previous Resistance
n=length increased by how many times
By using shortcut formula,
R'=1/100×15=0.15 ohm ans
####################
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