1 - 2 Marks CBSE Questions - Short answer type
Question.1: Define conductors?
Question.2: Define insulators?
Question.3: Are liquids conductors of electricity?
Question.4: What are the metal rods dipped in liquids to which cells are attached called?
Question.5: When we pass current through a conducting solution of water, which gas
bubbles will appear near positively charged electrodes?
Question.6: Name any chemical effect of electric current.
Question.7: To which terminal of the battery the metal meant for electroplating is attached?
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Question.8: In which direction does current flow?
Question.9: Which gas will accumulate near negative electrode when electric current is passed through a conducting solution of water?
3 - 5 Marks CBSE Questions- Long answer type
Question.10: What is LED, why is it the most preferable source of electricity?
Question.11: How can you prove conducting properties of substances when the current is very small and bulb does not glow?
Question.12: What is ‘Electroplating’? Describe.
Question.13: Give some advantages of electroplating.
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