Physics · Current Electricity

Why are alloys preferred over pure metals in electrical heating devices?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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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