High expansively
High thermal conductivity
Low density
Low electrical resistivity
Low melting point
Explanation
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The Answer is Low melting point. This is because a fuse is designed to serve d function of current breaking. wen a current of high voltage passes throug it, d fuse quickly melts inorder to prevent d current which can damage a named appliance from blowing. So, d answer is option D.
The correct answer is: E. Low melting point
Explanation:
A fuse wire is designed to melt and break the circuit when excessive current flows, preventing damage to electrical appliances or fire hazards. Therefore, it must:
Melt quickly when the current exceeds safe limits.
This means it should have a low melting point, so it melts easily under excess heat caused by high current.
Let's check the other options:
A. High expansively – Not relevant for fuse operation.
B. High thermal conductivity – Would dissipate heat instead of melting quickly. Not ideal.
C. Low density – Irrelevant for fuse function.
D. Low electrical resistivity – Opposite of what is needed. A slightly higher resistivity helps generate heat.
So the desirable property is:
E. Low melting point.
The correct answer is: E. Low melting point
Explanation:
A fuse wire is designed to melt and break the circuit when excessive current flows, preventing damage to electrical appliances or fire hazards. Therefore, it must:
Melt quickly when the current exceeds safe limits.
This means it should have a low melting point, so it melts easily under excess heat caused by high current.
Let's check the other options:
A. High expansively – Not relevant for fuse operation.
B. High thermal conductivity – Would dissipate heat instead of melting quickly. Not ideal.
C. Low density – Irrelevant for fuse function.
D. Low electrical resistivity – Opposite of what is needed. A slightly higher resistivity helps generate heat.
So the desirable property is:
👉 E. Low melting point.
