Homework Answers
The black ring on the small light bulb is an insulator , it's purpose is to safeguard the users from Electric shock .
It it was a conductor, then the current would flow on outer surface near its terminal and the user might get an electric shock .
Hence , black ring is there for safe use of bulbs
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You found that the black ring on the small light bulb was an insulator. What is its purpose in the bulb? (Hint: What would happen if it were a conductor?) 5. You found that the black ring on...
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