Question

Two object having equal charges are separated from each other by 2 meter. If the force acting between them is 1.6*10 power 9 N them what will be the dorce between them if distance is double

Answer 1

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12th

Physics

Electric Charges and Fields

Problems Based on Coulomb's Law

Two point charges having eq...

PHYSICS

Two point charges having equal charges separated by 1m distance experience a force of 8N. What will be the force experienced by them, if they are held in water, at the same distance?

(Given, K

water

=80 )

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ANSWER

F=

4πϵ

o

Kr

2

q

1

q

2

For air, K=1 and hence F=

4πϵ

o

r

2

q

1

q

2

=8N

In water:-

F=

4πϵ

o

Kr

2

q

1

q

2

=

k

8N

=

80

8

⟹F=0.1N

Answer-(C)

Explanation:

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