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Direction of rotation of motor is determined by ____________(a) Faraday’s law(b) Lenz’s law(c) Coulomb’s law(d) Fleming’s left-hand ruleThe question was posed to me in a national level competition.I'm obligated to ask this question of DC Motor Basics -1 in chapter DC Motors of DC Machines

Answer»

Right choice is (d) FLEMING’s left-hand rule

To explain: Flemings laws can be SUMMARIZED as WHENEVER, a current carrying conductor comes under a magnetic FIELD, there will be a force acting on the conductor and on the other hand, if a conductor is forcefully brought under a magnetic field, there will be an induced current in that conductor.



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