a] Faraday's law of induction states that the emf induced in a loop is directly proportional to the time rate of change of magnetic flux through the loop. b] Lenz's states that the induced currents and induced emf in a conductor are in such a direction as to set-up a magnetic field that opposes the change that produced them. c] A motor contains coil with a total resistance of 15.0 and is supplied by a voltage of 120 V. When the motor is running at its maximum speed, the back emf is 80.0 V. Hence the current in the coil at the instant the motor is turned on is 5.0 A.
a] Faraday's law of induction states that the emf induced in a loop is directly proportional to the time rate of change of magnetic flux through the loop. b] Lenz's states that the induced currents and induced emf in a conductor are in such a direction as to set-up a magnetic field that opposes the change that produced them. c] A motor contains coil with a total resistance of 15.0 and is supplied by a voltage of 120 V. When the motor is running at its maximum speed, the back emf is 80.0 V. Hence the current in the coil at the instant the motor is turned on is 5.0 A.
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Chapter1: Units, Trigonometry. And Vectors
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True or false
![a] Faraday's law of induction states that the emf induced in a loop is directly proportional
to the time rate of change of magnetic flux through the loop.
b] Lenz's states that the induced currents and induced emf in a conductor are in such a
direction as to set-up a magnetic field that opposes the change that produced them.
c] A motor contains coil with a total resistance of 15.0 and is supplied by a voltage of
120 V. When the motor is running at its maximum speed, the back emf is 80.0 V. Hence
the current in the coil at the instant the motor is turned on is 5.0 A.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ec14e5d-cb81-48fe-a090-1511cf062037%2F097880f9-e8eb-4b47-9000-841666a34d8a%2Fuyvpji_processed.png&w=3840&q=75)
Transcribed Image Text:a] Faraday's law of induction states that the emf induced in a loop is directly proportional
to the time rate of change of magnetic flux through the loop.
b] Lenz's states that the induced currents and induced emf in a conductor are in such a
direction as to set-up a magnetic field that opposes the change that produced them.
c] A motor contains coil with a total resistance of 15.0 and is supplied by a voltage of
120 V. When the motor is running at its maximum speed, the back emf is 80.0 V. Hence
the current in the coil at the instant the motor is turned on is 5.0 A.
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