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Electricity and Circuits — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceElectricity and Circuits3 Marks
Question
Using a conduction tester, select conductors and insulators from the following. Note your observations in a table as follows:
Pin, notebook, chalk, duster, pen, comb, key, rubber, nail, paper.
✓

Answer

S. No.
Thing
Bulb glows or not
Circuit situation
Object is conductor/ insulator
$1.$
Pin
Bulb glows.
Circuit is complete.
Conductor
$2.$
Notebook
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$3.$
Chalk
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$4.$
Duster
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$5.$
Pen
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$6.$
Comb
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$7.$
Key
Bulb glows.
Circuit is complete.
Conductor
$8.$
Rubber
Bulb doesn’t glow.
Circuit is not complete.
Insulator
$9.$
Nail
Bulb glows.
Circuit is complete.
Conductor
$10.$
Paper
Bulb doesn’t glow.
Circuit is not complete.
Insulator

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