We use Jefimenko’s formulas to give an alternative derivation (without introducing vector and scalar potentials) for the fields of a suddenly moving sheet of charge (Feynman’s example). We also comment on the nonlocal nature of Jefimenko’s formulas.

1.
R. P.
Feynman
,
R. B.
Leighton
, and
M.
Sands
,
The Feynman Lectures on Physics
(
Addison-Wesley
, Reading, MA,
1964
), Vol.
II
, Sec. 18-4.
2.
Barry R.
Holstein
, “
Radiation from a suddenly miving sheet of charge
,”
Am. J. Phys.
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63
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217
221
(
1995
).
See also
P. C.
Peters
, “
Electromagnetic radiation from a kicked sheet of charge
,”
Am. J. Phys.
,
54
(
3
),
239
245
(
1986
).
3.
Oleg D.
Jefimenko
,
Electricity and Magnetism
(
Appletton-Century-Crofts
, New York,
1966
), Sec. 15-7 or
Oleg D.
Jefimenko
,
Electricity and Magnetism
(
Electret Scientific
, Star City, WV,
1989
), 2nd ed., Sec. 15-7.
4.
David J.
Griffiths
and
Mark A.
Heald
, “
Time-dependent generalizations of the Biot-Savart and Coulomb laws
,”
Am. J. Phys.
,
59
(
2
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111
117
(
1991
).
5.
Tran-Cong
Ton
, “
On the time-dependent, generallized Coulomb and Biot-Savart laws
,”
Am. J. Phys.
,
59
(
6
),
520
528
(
1991
).
6.
José A.
Heras
, “
Time-dependent generalizations of the Biot-Savart and Coulomb laws: A formal derivation
,”
Am. J. Phys.
,
63
(
10
),
928
932
(
1995
).
7.
U.
Bellotti
and
M.
Bornatici
, “
Time-dependent, generalized Coulomb and Biot-Savart laws: A derivation based on Fourier transforms
,”
Am. J. Phys.
,
64
(
5
),
568
570
(
1996
).
8.
Kirk T.
McDonald
, “
The relation between formulas for time-dependent electromagnetic fields given by Jefimenko and by Panofsky and Phillips
,”
Am. J. Phys.
,
65
(
11
),
1074
1076
(
1997
).
9.
Mark A.
Heald
and
Jerry B.
Marion
,
Classical Electromagnetic Radiation
(
Saunders College Publishing
, Fort Worth,
1995
), 3rd ed., Sec. 8.4.
10.
David J.
Griffiths
,
Introduction to Electrodynamics
(
Prentice–Hall
, Englewood Cliffs, NJ,
1999
), 3rd ed., Sec. 10.2.2.
11.
J. D.
Jackson
,
Classical Electrodynamics
(
Wiley
, New York,
1999
), 3rd ed., Sec. 6.5.
12.
Oleg D.
Jefimenko
,
Electromagnetic Retardation and Theory of Relativity
(
Electret Scientific
, Star City, WV,
2004
), 2nd ed. Chap. 2;
Oleg D.
Jefimenko
,
Causality, Electromagnetic Induction and Gravitation
(
Electret Scientific
, Star City, WV,
2004
), 2nd ed., Chap. 2.
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