PHY2602 Electromagnetism Assignment 3 Solutions
Memo 2024
1.
Φ = B · A, B = Magnetic flux density,
Φ = Hµ · A, A = Area, H = Magnetic field intensity, µ = Magnetic permeability.
MMF(F )
H= ,
l
where l = length, MMF = magnetomotive force.
F µA
Φ= .
l
Magnetic reluctance (R):
l
R= .
µA
F
Φ = F R−1 = .
R
2.
dI
E = −L ,
dt
where:
dI
L = 0.1, = 10 × 103 .
dt
E = −1000 V.
Magnitude:
|E| = 1000 V.
1
Memo 2024
1.
Φ = B · A, B = Magnetic flux density,
Φ = Hµ · A, A = Area, H = Magnetic field intensity, µ = Magnetic permeability.
MMF(F )
H= ,
l
where l = length, MMF = magnetomotive force.
F µA
Φ= .
l
Magnetic reluctance (R):
l
R= .
µA
F
Φ = F R−1 = .
R
2.
dI
E = −L ,
dt
where:
dI
L = 0.1, = 10 × 103 .
dt
E = −1000 V.
Magnitude:
|E| = 1000 V.
1
