Questions
A fuse wire with a circular cross-sectional radius of o.02 mm blows with a current of 5 ampere. For what current another fuse wire made from the same material with cross-sectional radius of 0.04 mm will blow ?
detailed solution
Correct option is A
i2=i1r2r13/2=50⋅040⋅023/2=14⋅7ATalk to our academic expert!
Similar Questions
Permissible current through a fuse wire of diameter 1 mm is 1A. What should be the radius of a fuse wire, made of same material, whose permissible current is 8A ?
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