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Chapter 11

Chemical Effects of Electric Current

Science•Class 8•CBSE

17 Questions Available

Showing 17 questions on this page

Does water conduct electricity? Show with the help of an activity. OR Show the conductivity of water with the help of an activity.

57 views0 helpful

On what factors thickness of the electroplated items depend?

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What do you mean by magnetic effect of current?

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Describe an electrical tester.

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What do you mean by chemical effect of current?

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In some situation even, liquid is allowing the electric current to pass but, bulb does not glow. Why so?

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Explain the functioning of a LED.

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How can we check whether a tester is working or not?

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Is it possible for an electric tester to detect weak current also, if no how can we detect weak current flowing in a circuit?

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Differentiate between good conductors and bad conductors of electricity.

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What are the two types of electricity on the basis of charge?

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What is electroplating? On which effect of the electric current is it based? Why is it done?

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Why the filament of bulb does not get heated sometimes in a circuit?

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Differentiate between good conductors and bad conductors of electricity.

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What do you mean by heating effect of current?

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Why materials classified as poor conductors, also allow electricity to pass under certain conditions?

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How can you test whether lemon juice is good conductor or poor conductor of electricity?

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Chemical Effects of Electric Current

Does water conduct electricity? Show with the help of an activity. OR Show the conductivity of water with the help of an activity.

On what factors thickness of the electroplated items depend?

What do you mean by magnetic effect of current?

Describe an electrical tester.

What do you mean by chemical effect of current?

In some situation even, liquid is allowing the electric current to pass but, bulb does not glow. Why so?

Explain the functioning of a LED.

How can we check whether a tester is working or not?

Is it possible for an electric tester to detect weak current also, if no how can we detect weak current flowing in a circuit?

Differentiate between good conductors and bad conductors of electricity.

What are the two types of electricity on the basis of charge?

What is electroplating? On which effect of the electric current is it based? Why is it done?

Why the filament of bulb does not get heated sometimes in a circuit?

Differentiate between good conductors and bad conductors of electricity.

What do you mean by heating effect of current?

Why materials classified as poor conductors, also allow electricity to pass under certain conditions?

How can you test whether lemon juice is good conductor or poor conductor of electricity?