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  3. a baremetal cylindrical conductor has the form shown at right...

Question: a baremetal cylindrical conductor has the form shown at right...

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A bare-metal cylindrical conductor has the form shown at right. Properties of tin, lead and copper are given in the following table metal fuse temp density resistivity specific heat 232 lead 327 copper1085 0.227 0.129 0.385 tin 115 208 Note that T(K-T(C)+ 273.15 and g denotes gram. Assume an emissivity є 0.2 . You want to make fuses with l-lcm and a fusing current of 10A. What radii (in mm) should be chosen for (a) tin (b) lead (c) copper

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