When a glass rod is rubbed with a piece of silk cloth the rod

(a) and the cloth both acquire positive charge.

(b) becomes positively charged while the cloth has a negative charge.

(c) and the cloth both acquire negative charge.

(d) becomes negatively charged while the cloth has a positive charge

 

Answer

(b) becomes positively charged while the cloth has a negative charge.

 

When two objects are rubbed together, both get electrically charged but with different charges

By convention, the glass rod develops a positive charge.

The silk cloth develops an equal amount of opposite charge, and hence becomes negatively charged.

  1. Class 8
  2. Chapter 15 Class 8 - Some Natural Phenomena

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CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo