High School

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1. Which of the following is NOT a result of a convection current?

A. The air in a room is cooled by an air conditioner.
B. Wind blows towards the beach from the sea.
C. The water in a kettle is heated and boils.
D. The wax covering an iron rod melts when the rod is heated.

Answer :

Answer:

its D

Explanation:

because conduction happens through solids and the others are obviously conventional current

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Rewritten by : Barada

The wax covering an iron rod melts when the rod is heated ( D ) is not a result of convection current

Convection is the transfer of heat energy from an area of higher concentration to an area of lower concentration and it occurs in fluids and gases. while conduction is the transfer of heat energy from one object to another through the direct contact of the objects and this occurs between solids.

The transfer of heat from the heated rod to the wax covering occurs because of the direct contact the wax has with the heated rod therefore it is conduction and not a convection current.

Hence we can conclude that The wax covering an iron rod melts when the rod is heated is not a result of convection current

Learn more : https://brainly.com/question/2754683