Multiple choice

Which of the following properties of an alloy in a heating element used in a heater is true?

  1. An alloy does not consist of any metal

  2. Alloys decrease the tensile strength by adding a carbon agent.

  3. Alloys have very high resistance

  4. Alloy is designed to be able to operate at low temperatures.

  5. Alloys have a high melting point
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The heating element of the heater is made up of an alloy which has very high resistance so when current flows through the heating element, it becomes hot and glows red.

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