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How will you show that like charges repel and unlike charges attract each other? - Physics

Answer in Brief

How will you show that like charges repel and unlike charges attract each other?

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Solution

Experiment: Take a glass rod rubbed with silk piece (+vely charged) Suspend it in a stand with the help of a thread.
Bring a -vely charged Ebonite rod (rubbed with fur) near the glass rod.

Attraction is seen between the two rods. Now interchange them i.e. suspend B and bring A near it, again attraction is there. This show that unlike charges attract each other.

-vely charged ebonite rods


Now take two glass rods (+vely charged) and bring them near each other, repulsion takes place. Similarly, if we take two -vely charged ebonite rods and suspend one of them and bring the second rod near it again the suspended rod moves away showing repulsion between like charges.

+vely charged glass rods

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APPEARS IN

Selina Concise Physics Class 8 ICSE
Chapter 8 Electricity
Exercise 8 (B) (Short/Long answer questions) | Q 9 | Page 167
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