Physics
Grade-8
Easy
Question
Find the direction of force acting on the small positive test qo due to a positively charged sphere of charge Q shown in the given figure:
- Towards right
- Towards left
- Towards upside
- Towards down
Hint:
Like charges repel each other.
The correct answer is: Towards right
Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges. The size of the force varies inversely as the square of the distance between the two charges.
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