Question

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1.Name any two appliances which work under the principal of heating effort of current?

2.What is electrolysis? What is electrolyte?

3.What is alternating current?

4.What are the advantages of ac over dc?

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Answer 1

Answer:

1.Two devices operated on the basis of heating effect of electric current are iron and room heater.

2.

Explanation:

electrolyte: A substance that, in solution or when molten, ionizes and conducts electricity. electrolysis: The chemical change produced by passing an electric current through a conducting solution or a molten salt.

.3 .Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction.

4.Following are the advantages of alternating current over direct current: AC is less expensive and easy to generate than DC. The distance covered by AC is more than that of the DC. The power loss during transmission in AC is less when compared to the DC.

Answer 2

Answer:

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Two devices operated on the basis of heating effect of electric current are iron and room heater

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Electrolysis, process by which electric current is passed through a substance to effect a chemical change. ... The process is carried out in an electrolytic cell, an apparatus consisting of positive and negative electrodes held apart and dipped into a solution containing positively and negatively charged ions.

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an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.

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Following are the advantages of alternating current over direct current: AC is less expensive and easy to generate than DC. The distance covered by AC is more than that of the DC. The power loss during transmission in AC is less when compared to the DC.

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