Which terminal is represented by the longer lead of LED?

Important Questions on Chemical Effects of Electric current

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q B

Name the technique used for gold coating in artificial jewellery.

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

What is an LED? Why it is better to use an LED than a torch bulb in electric circuits?

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

Describe three types of effects produced by an electric current.

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

Why are we advised not to touch electrical appliances with wet hands?

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

What do we need to add in distilled water in order to make it conducting?

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

What is electroplating? Name three effects of electroplating on the surface of a material.

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

Give three industrial applications of chemical effects of electric current.

EASY

8th CBSE

IMPORTANT

I Explore 3rd EDITION A Science Textbook 8>Chapter 13 - Chemical Effects of Electric current>EXERCISES>Q C

Explain the role of the compass in a circuit.