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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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.