Pls ans my question
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Answer:
5A
Explanation:
fuse wire reading suggests that max current it can take so that wire will not break
so According to question 1000w =power
V=220V
P=IV
P/v=I
I=100/22=4.54A
so max reading of fuse wire according to option is 5A
R=resistivity×length/area
resistivity will not change as it doesnot depend on length but
resistance is directly proportional to it so
length becomes 1/3 so R becomes 1/3
1/rparallel=1/r1+1r2...
1/r =3/r+3/r+3/r=9/r
Req=r/9
shashankchauhan2004:
and 2nd part
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