An insulated rod when rubbed with a material acquires
...An insulated rod when rubbed with a material acquires
a negative charge if it is made of glass and rubbed with silk
no charge if it is made of glass and rubbed with fur
no charge if it is made of copper and rubbed with silk
a positive charge if it is made of copper and rubbed with fur
Correct answer is B
No explanation has been provided for this answer.
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