Answer :
Final answer:
The wire needed for making the elements of an electric heater should have high electrical resistance and a high melting point.
Explanation:
Two special characteristics of the wire needed for making the elements of an electric heater are:
1. High electrical resistance: The wire used in electric heaters should have high electrical resistance to convert electrical energy into heat energy. This allows the wire to generate enough heat to warm up the surroundings effectively.
2. High melting point: The wire should have a high melting point to withstand the high temperatures generated when current passes through it. This prevents the wire from melting or breaking under the intense heat produced by the heater elements.
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