What is the mathematical relationship between current flowing in fuse and radius of fuse wire??
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The Temprature of wire determines the fusing current. Resistance of wire per unit is
R=p/πr²
where r is the resistance of wire per unit lenght, radius= r and p= redistivity
l²=πr³T^0/(Kp)
where T0is fusing Temprature. everything besides l amd r are constant so
l²is proportional. to r³
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