why centripetal force rotates a body in a fixed circle. as we think about it the force from the centre may have different sometimes. but it still rotates in a fixed circle. just like in atom when electrons revolving around the nucleus but when protons increase it still revolving in a fixed circle............................. why?
Answers
Answer:
The answer is electricity and magnetism. The atom's center, electron nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small. The distance between the nucleus and the electrons is about 1 Angstrom (named after a famous scientist); this is 0.00000001 cm (10-8 cm) or about 4 billionth of an inch. Since the electric force varies with the distance between the positive and negative charges like 1 over the distance squared, the force gets large for small distances.
This can be typically called as a centripetal force acting on electon to revolve around nucleus.
Answer:
Answer: C
The answer is electricity and magnetism. The atom's center, electron nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small. The distance between the nucleus and the electrons is about 1 Angstrom (named after a famous scientist); this is 0.00000001 cm (10-8 cm) or about 4 billionth of an inch. Since the electric force varies with the distance between the positive and negative charges like 1 over the distance squared, the force gets large for small distances.
This can be typically called as a centripetal force acting on electon to revolve around nucleus.