If the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.
The speed of the motor depends on the strength of the induced emf in the coil of the electric motor.
emf = NdФ/dt
where;
F = BIL = qvB
where;
As the induced current in the coil of the motor increases, the speed of the motor will increase.
Thus, if the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.
Learn more about induced emf here: https://brainly.com/question/13744192
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