Force between a permanent dipole and a polarizable atom In the figure below there is a permanent dipole on the left with dipole moment #₁ = Q ₁ and a neutral atom on the right with polarizability a, so that it becomes an induced dipole with dipole moment μ₂ = qs₂ = αE₁, where E₁ is the magnitude of the electric field produced by the permanent dipole. Show that the force the permanent dipole exerts on the neutral atom is -Q+Q F-3--1 $1 F-- ~ (11) ² 120µ² F≈ -1 F F- r » S1 -9 +9 1--1 $2 Hint: It is convenient to use the "binomial expansion" that you may have learned in calculus, that (1 + €)¹ 1+ne when € < 1. Note that n can be negative.
Force between a permanent dipole and a polarizable atom In the figure below there is a permanent dipole on the left with dipole moment #₁ = Q ₁ and a neutral atom on the right with polarizability a, so that it becomes an induced dipole with dipole moment μ₂ = qs₂ = αE₁, where E₁ is the magnitude of the electric field produced by the permanent dipole. Show that the force the permanent dipole exerts on the neutral atom is -Q+Q F-3--1 $1 F-- ~ (11) ² 120µ² F≈ -1 F F- r » S1 -9 +9 1--1 $2 Hint: It is convenient to use the "binomial expansion" that you may have learned in calculus, that (1 + €)¹ 1+ne when € < 1. Note that n can be negative.
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![Force between a permanent dipole and a polarizable atom
In the figure below there is a permanent dipole on the left with dipole moment μ₁ = Q 8₁ and a neutral atom on
the right with polarizability a, so that it becomes an induced dipole with dipole moment μ2 = 982 = αE₁, where
E₁ is the magnitude of the electric field produced by the permanent dipole. Show that the force the permanent
dipole exerts on the neutral atom is
-Q+Q
F-=--1
$1
F≈
1
(ATC)
F--
r » S1
12αμ
p.7
-9 +9
1--1
$2
Hint: It is convenient to use the "binomial expansion" that you may have learned in calculus, that
(1 + €)¹ 1+ne when € < 1. Note that can be negative.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a65f45f-0527-4b6c-9f9f-2f74eeb63031%2F3d9a0e95-f539-4704-a77a-166bf310c48f%2Fo6lkc_processed.png&w=3840&q=75)
Transcribed Image Text:Force between a permanent dipole and a polarizable atom
In the figure below there is a permanent dipole on the left with dipole moment μ₁ = Q 8₁ and a neutral atom on
the right with polarizability a, so that it becomes an induced dipole with dipole moment μ2 = 982 = αE₁, where
E₁ is the magnitude of the electric field produced by the permanent dipole. Show that the force the permanent
dipole exerts on the neutral atom is
-Q+Q
F-=--1
$1
F≈
1
(ATC)
F--
r » S1
12αμ
p.7
-9 +9
1--1
$2
Hint: It is convenient to use the "binomial expansion" that you may have learned in calculus, that
(1 + €)¹ 1+ne when € < 1. Note that can be negative.
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