Physics, asked by shashankchauhan2004, 1 year ago

Pls ans my question
I will definitely mark the ans brainliest...​

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Answers

Answered by octoglide
1

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
octoglide: sure
octoglide: i have solved second part
shashankchauhan2004: so how will you share?
octoglide: i have updated my answer
shashankchauhan2004: ok
shashankchauhan2004: thanks
octoglide: brainliest
shashankchauhan2004: wait for a day
shashankchauhan2004: you are the only one who answered my ques
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