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Unformatted text preview: 73. The contribution to the force by the magnetic ﬁeld (B = Bxˆ = −0.020ˆ T) is given by Eq. 29-2:
= qv × B = q = FB ˆ
q −220k − 140ˆ
17000ˆ × Bxˆ + −11000ˆ × Bxˆ + 7000k × Bxˆ
i in SI units. And the contribution to the force by the electric ﬁeld (E = Eyˆ = 300ˆ V/m) is given by
ˆ Using q = 5.0 × 10−6 C, the net force (with the unit newton understood) on the
Eq. 23-1: FE = qEy j.
F = 0.0008ˆ − 0.0011k .
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