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satnam

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· 1 Months ago

Low melting point & specific resistance

Question:

Fuse material must have ______.

Options:
A)

high melting point and high specific resistance

B)

low melting point and high specific resistance

C)

low melting point and low specific resistance

D)

high melting point and low specific resistance

Solution:

Ans: (b)

The material used for fuse elements must be of low melting point, low ohmic loss, high conductivity (or low resistivity), low cost and free from detraction. The material used for making fuse element has a low melting point such as tin, lead, or zinc.

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