Two particles placed in a medium of dielectric constant 20 repel with a force of 10N they are placed in air and separation is doubled calculate force acting between them.
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Answer:
Two charges are placed in vacuum at a distance 'd' apart. The force between them is 'F'. If a medium of dielectric constant 4 is introduced between them, the force will be:
A
4 F
B
2 F
C
F/2
D
F/4
Medium
Explanation:
Correct option is
D
F/4
We know that new force F
N
is inversely proportional to dielectric Constant
F
N
=
K
F
=
4
F
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