Question

heya...hlp me...♥️♥️♥️not getting this


15 pts.....​

Answer 1

when diameter reduce to half of its value

then area of cross section reduces to 1/4 of its value

area = pie r^2 and diameter and radius are directly proportional So diameter reduced to half,radius reduced to half and area reduced to 1/4

As area and length are inversely proportional so area when reduced to 1/4 then length becomes 4 times

As rezistance is directly proportional to L/A

Length 4 times

Area 1/4 times

So 4× 4 = 16 times

So resistance becomes 16 times

As u demanded mathematically

see in attachment

Answer 2

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Explanation:

thanks for 8 pts game changer baby