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← Topic 20
Magnetic-field toolkit
Calculate magnitudes, then use the physical rules to establish direction.
Current force
B / T
I / A
L / m
1.500e-1 N
Charged-particle orbit
q / C
v / m s⁻¹
m / kg
F=9.600e-14 N
r=1.566e-1 m
Velocity selector
E / V m⁻¹
v = 1.500e+5 m s⁻¹
Average induced emf
N
|ΔΦ| / Wb
Δt / s
4.000 V