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10 questions from this quiz
Electrical potential to kinetic energy
Magnetic field strength in tesla
When current is perpendicular to field
τ=IABsinθ\tau = IAB\sin\thetaτ=IABsinθ
Reverses current every half rotation
Commutator
Carbon or graphite
Torque increases proportionally: nIABnIABnIAB
Induced voltage opposing applied voltage
Back emf increases, limiting max speed
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