The safety fuse should have _____.
Reveal answer
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The safety fuse should have _____.
high resistance and high melting point
high resistance and low melting point
low resistance and high melting point
low resistance and low melting point
A safety fuse needs high resistance to heat up and melt at a specific low temperature when excess current flows. High resistance converts electrical energy to heat efficiently, while low melting point ensures quick breakage. High melting point would delay circuit protection, and low resistance would prevent adequate heating.