Magnetism

Question 1

Dipole antenna length

Answer 1

l=alpha/2

Question 2

Inductance formula

Answer 2

L=Vind / (I / t )

H=V / (Amp / seconds )

Question 3

Induced EMF formula

Answer 3

Vind = -B * l * v

V=Tmm/s

Question 4

Magnetic flux density on a coil

Answer 4

B=mu0 * mur * H = mu0 * mur * (I*N)/I

H=(Amp * whorls) / m

Question 5

Thomson formula for frequency

Answer 5

f=(1/2pi)(1/sqrt(L*C))

Question 6

Transformers ratios

Answer 6

U1N2 = N1U2
P1=P2
U1I1=U2I2