A fusein an electric circuit is a wire that is designed to melt, and therby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to 420 A/cm^2
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Current density (J) is defined as the amount of electric current (I) flowing per unit area (A) of a conductor. It is expressed in units of amperes per square centimeter (A/cm²). Show more…
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33. A Fuse A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to $440 \mathrm{~A} / \mathrm{cm}^{2} .$ What diameter of cylindrical wire should be used to make a fuse that will limit the current to $0.50 \mathrm{~A}$ ?
A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to $440 \mathrm{~A} / \mathrm{cm}^{2} .$ What diameter of cylindrical wire should be used to make a fuse that will limit the current to $0.50 \mathrm{~A} ?$
A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to $440 \mathrm{~A} / \mathrm{cm}^{2}$. What radius of cylindrical wire should be used to make a fuse that will limit the current to $6.0 \mathrm{~A}$ ?
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