When a glass rod is rubbed with a piece of silk cloth the rod
- and the cloth both acquire positive charge.
- becomes positively charged while the cloth has a negative charge.
- and the cloth both acquire negative charge.
- becomes negatively charged while the cloth has a positive charge.
The Correct Option is B
Solution and Explanation
Silk is rubbed on a glass rod, and the act of rubbing charges both the rod and the silk. Electrons go from one body to another, giving one a negative charge and the other a positive charge. Because silk can attract electrons more readily than glass, it has a higher electron affinity. Thus, glass gains a tiny positive charge and silk a slight negative charge.
The correct option is (B): becomes positively charged while the cloth has a negative charge.
Top Questions on Charging by Rubbing
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Concepts Used:
Electric Charge
What is Electric Charge
It is the property of subatomic particles that experiences a force when put in an electric and magnetic field. It is are of two types: Positive and Negative. It commonly carried by charge carriers protons and electrons.
Properties of Electric Charge
Various properties of charge include the following :-
- Additivity of Electric Charge
- Conservation of Electric Charge
- Quantization of Electric Charge
Types of electric charge
Two kinds of electric charges are there :-
Negative Charge - When an object has a negative charge it means that it has more electrons than protons.
Positive Charge - When an object has a positive charge it means that it has more protons than electrons.
When there is an identical number of positive and negative charges, the negative and positive charges would cancel out each other and the object would become neutral.