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.

e = 1.6 X 10-19 C

Dx = x2 - x1, Dt = t2 - t1

v = dx/dt

a = dv/dt = d2x/dt2

v = vo + at

g = 9.8 m/s2

x-xo = vot + ()at2

v2 = vo2 + 2a(x-xo)

x-xo = ( vo+ v)t

x-xo = vt -1/2at2

,

DU = Uf - Ui = -W

U=-W

DV = Vf - Vi = -W/q0 = DU/q0

V = -W/q0

 

Q = CV

(parallel)

(series)

C = k C0

I= dQ/dt

 

 

V = IR

P = IV

P = I2R=V2/R

 

Pemf = Ie

(series)

(parallel)

q(t)= Q(1-e-t/RC)

I = (e/R)e-t/RC

q(t) = Qet/RC

I = (Q/RC)e-t/RC, I0 = (Q/RC)

 

 

 

t =

, m0= 4p x 10-7 T.m/A

B = m0I/2 pr

B = m0nI (solenoid)

F/l = (m0I1I2)/2pa

B = (m0IN)/(2pr) (toroid)