Question

why immersion rods for heating liquids are made up of metallic substance
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Answer 1

Answer:

Immersion rods for heating liquids are made up of metallic substances because metals are good conductors of heat and electricity. The immersion rod needs electric supply to get heated and; in turn; to heat liquids.

Answer 2

Answer: metals are good conductors of heat and electricity

Explanation:

since immersion rods help in heating water, metals being good conductors of heat, are effective.