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Electrostatics
Electrostatics
5 formulas · Physics
Coulomb's law
F
=
k
q
1
q
2
r
2
F=k\dfrac{q_1 q_2}{r^2}
F
=
k
r
2
q
1
q
2
Electric field strength
E
=
F
q
E=\dfrac{F}{q}
E
=
q
F
Voltage / work done by the field
U
=
W
q
U=\dfrac{W}{q}
U
=
q
W
Capacitance of a capacitor
C
=
Q
U
C=\dfrac{Q}{U}
C
=
U
Q
Energy of a capacitor
E
=
1
2
C
U
2
E=\tfrac12 CU^2
E
=
2
1
C
U
2
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