Equations Flashcards
0
Q
Force in radial fields (coulombs law)
A
F = Qq / 4πε0r^2
1
Q
Electric field strength (uniform field)
A
E = F/Q
2
Q
Radial electric field strength
A
E = Q / 4πε0r^2
3
Q
Potential gradient
A
F = V/d
4
Q
Force on a current
A
F = BIL sinθ
5
Q
Force on a moving charge
A
F = BQv
6
Q
Magnetic flux
A
φ = BA cosθ
7
Q
Work done to charge a capacitor
A
W = QV / 2 W = CV^2 / 2
8
Q
Capacitor in parallel
A
C = C1 + C2 + C3…
9
Q
Capacitors in series
A
1/C = 1/C1 + 1/C2 + 1/C3…
10
Q
Radioactive activity
A
A = λN
11
Q
Acoustic impedance
A
Z = ρc
