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Question
A fuse is used to protect electric circuits from too much electricity running through them. How should a fuse be hooked up with the components it is designed to protect? Justify your answer.
Responses
A A fuse should be hooked up in series because all the current must flow through the fuse in a series circuit.A fuse should be hooked up in series because all the current must flow through the fuse in a series circuit.
B A fuse should be hooked up in parallel because all the voltage must flow through the fuse in a series circuit.A fuse should be hooked up in parallel because all the voltage must flow through the fuse in a series circuit.
C A fuse should be hooked up in parallel because all the current must flow through the fuse in a parallel circuit.A fuse should be hooked up in parallel because all the current must flow through the fuse in a parallel circuit.
D A fuse should be hooked up in parallel because all the voltage must flow through the fuse in a parallel circuit.A fuse should be hooked up in parallel because all the voltage must flow through the fuse in a parallel circuit.

Answer 1

The correct answer is:

A: A fuse should be hooked up in series because all the current must flow through the fuse in a series circuit.

Justification: A fuse is a protective device designed to break the circuit if the current exceeds a specific level, thus preventing damage to the electrical components. By connecting the fuse in series with the rest of the circuit, all of the current flowing through the circuit must pass through the fuse. If the current exceeds the fuse's rated capacity, the fuse will melt and break the circuit, thereby protecting the components downstream from excess current.

In contrast, if a fuse were connected in parallel, it would not effectively protect the circuit, as only a portion of the current would pass through the fuse, potentially allowing excessive current to continue flowing through the circuit without triggering the fuse.