Question

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

A. the heating effect of current alone

B. hysteresis loss alone

C. both the heating effect of current and hysteresis loss

D. intense sunlight at noon

Answer 1

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Option A

• The current that three properties the

=>Heating effect of electric current

=>The magnetic effect of electric current

=>The chemical effect of electric current

Heating effect of electric current

• When heat is passed through a body it gets hot, that is heart energy is produced.

• Eg- in water heaters, bread rosters etc....

Magnetic effect of electric current

• When electricity is passed through some metals they act as if they are a magnet untill the current flow stops.

• Such a magnet is called an electromagnetic.

Chemical effect of electric current

• When electricity is passed through liquids (some) there is a chemical change that happens.

• This process is called electrolysis.

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Answer 2

Answer:

option A ✔

heating effect of electric current.

➡️ A voltage difference between two points of a conductor creates an electric field that accelerates charge carriers in the direction of the electric field, giving them kinetic energy.

Explanation:

hope it helps ✔✔