everyday science MCQ #5117

Which one of the following sets of properties is relevant for an electrical fuse wire needed for normal application?

everyday science MCQ #5117

  1. Question 1

    Q1. Which one of the following sets of properties is relevant for an electrical fuse wire needed for normal application?

    • A) Thick wire, high melting point alloy, short length
    • B) Thick wire, low melting point alloy, large length
    • C) Short length, low melting point alloy, thin wire
    • D) Large length, low melting point alloy, thin wire

    Answer: Short length, low melting point alloy, thin wire

    Explanation: A fuse wire must be thin (high resistance), short (less material to melt), and made of a low melting point alloy so it melts quickly when current exceeds the safe limit.