Physics · Electric Current and Resistance
Alloys are preferred over pure metals in electrical heating devices:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1because the resistivity of an alloy is lower than that of its constituent metals.
- 2because alloys oxidise (burn) readily at high temperatures.
- 3because the resistivity of an alloy is generally higher than its constituent metals.✓
- 4because the elasticity of an alloy is higher than that of its constituent metals.
Correct answer
because the resistivity of an alloy is generally higher than its constituent metals.
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