A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

Question 1

(a) It is connected in parallel with the main switch

(b) It is made mainly from silver alloys

(c) It must have a low melting point

(d) It must have very high resistance

Question 2

(c) A fuse is a type of sacrificial overcurrent protection device. Its essential component is a metal wire or strip that melts when too much current flows. Short circuit, overload or device *** is often the reason for excessive current. The resistance of the element used in fuse generates heat due to the current flow. It has low melting point so that it melts when a short-circuit or overloading takes place.

kratos · Answer 1 · 2020-01-02T13:44:29+0000

(c) A fuse is a type of sacrificial overcurrent protection device. Its essential component is a metal wire or strip that melts when too much current flows. Short circuit, overload or device *** is often the reason for excessive current. The resistance of the element used in fuse generates heat due to the current flow. It has low melting point so that it melts when a short-circuit or overloading takes place.

A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

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A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

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1 Answer

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