Electric motor electrical energy is put into the motor and is converted into

# Electric motor electrical energy is put into the

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Electric motor, electrical energy is put into the motor and is converted into mechanical work. Electric generator, mechanical work is inputted and converted into electrical energy. 8) If your metal car moves over a wide, closed loop of wire embedded in a road surface, will the magnetic field of the Earth within the loop be altered? Will this produce a current pulse in the loop of wire? What practical application does this have at a traffic intersection? When your car moves over the closed loop, the Earth’s magnetic field will align the domains in the car’s metal frame in the same direction as itself. This will add to the magnetic flux through the loop and induce a voltage that will drive a current in the loop according to Faraday’s

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PHYS 100 Name: ____________________ Homework 11: Magnetism and Electromagnetism Date: ____________________ Induction Law. This can be used as a sensor to detect the presence of cars at an intersection and used to control the changing of traffic signals. 9) In what sense can a transformer be thought of as an “ electric lever ”? it does not increase the input power to produce a greater output power. Rather, it just changes the contributions to the output power. a lever can change a smaller input force into a large output force by sacrificing distance moved, a transformer is able to “pump” up a small input voltage to a large output voltage by sacrificing current.
• Spring '17
• Roger Kwok
• Magnetic Field

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