(b) A disk of radius R (Figure 2) has a non-uniform surface charge density = Cr, where C is a constant and ris measured from the center of the disk. Find the potential at P. R 1 & μα = c² x (10-7 H-m¯¹) ke Απερ 4T = 8.987 551 787 368 1764 x 10° N-m².C-². -SE. E = k₁/2 ↑ ke ΦΕ =&dq=pdV Р dq = σ dA σ A λ =&dq= - dq = λ de = F₁ =qE F12 = ke 9 V = ke / / T V = U/qo 9192 U = ke 112 9192 ‹H E. dA = qin €0 P
(b) A disk of radius R (Figure 2) has a non-uniform surface charge density = Cr, where C is a constant and ris measured from the center of the disk. Find the potential at P. R 1 & μα = c² x (10-7 H-m¯¹) ke Απερ 4T = 8.987 551 787 368 1764 x 10° N-m².C-². -SE. E = k₁/2 ↑ ke ΦΕ =&dq=pdV Р dq = σ dA σ A λ =&dq= - dq = λ de = F₁ =qE F12 = ke 9 V = ke / / T V = U/qo 9192 U = ke 112 9192 ‹H E. dA = qin €0 P
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Transcribed Image Text:(b) A disk of radius R (Figure 2) has a non-uniform surface
charge density o = Cr, where C is a constant and ris
measured from the center of the disk. Find the potential at P.
R
1
& μο
ke
c² x (10-7 H-m-¹)
Απερ
4π
= 8.987 551 787 368 1764 × 10º N·m².C-².
9
qE
E =
½Î
ΦΕ
F12 ke
Î
=
=&
P
dq = pdv
9
V = ke
O
dq = σ dA
A
V = U/qo
λ &dq= λ de
U = ke
=
Fe
=
9192
.2
9192
112
ke
X
qin
=
- f E-dA = 9m
€0
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