Solved UPSC CDS/OTA Question
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Q · Current ElectricityMedium · 45s
Which of the following materials can easily become positively charged when rubbed?
TopicCurrent Electricity
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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When a glass rod is rubbed with silk, electrons move from the glass to the silk, leaving the glass positively charged. This is a classic example of the triboelectric effect.
Final Answer: Option A - Glass rod