b. On the figure above, show the direction of the current induced in the resistor. c. Determine the force required to keep the loop moving at 4 m/s. d. Determine the rate at which work must be done to keep the loop moving at 4 m/s. that opposes the change of flux Chapter Questions A potential difference measured in through the loop. volts. No, only the area within the loop is Whether a changing magnetic considered. can generate a current. As the plug is pulled out and the An EMF would be produced in a current starts decreasing, the current secondary loop when a current was supplied by the company will switched on and off in a primary increase to produce a magnetic field loop. to oppose the decreasing magnetic Flux is at a maximum when the field resulting in a spark. – magnetic field is parallel to the Conservation of Energy. Normal to the surface. It is at a Yes, this is possible, as is no minimum when it is perpendicular to physical property to prevent it from the Normal. happening. The constantly changing By varying either the angle of the fields are called electromagnetic magnetic field with the Normal to waves, or, as they are more the surface, or changing the area of commonly known, light. This will the loop. be covered in the EM Waves unit of The direction of induced EMF in a this course. current loop is such that the resulting Yes. The induced magnetic field is current produces a magnetic field produced by the induced current.
b. On the figure above, show the direction of the current induced in the resistor. c. Determine the force required to keep the loop moving at 4 m/s. d. Determine the rate at which work must be done to keep the loop moving at 4 m/s. Chapter Questions A potential difference measured in volts. Whether a changing magnetic can generate a current. An EMF would be produced in a secondary loop when a current was switched on and off in a primary loop. Flux is at a maximum when the magnetic field is parallel to the Normal to the surface. It is at a minimum when it is perpendicular to the Normal. By varying either the angle of the magnetic field with the Normal to the surface, or changing the area of the loop. The direction of induced EMF in a current loop is such that the resulting current produces a magnetic field that opposes the change of flux through the loop. No, only the area within the loop is considered. As the plug is pulled out and the current starts decreasing, the current supplied by the company will increase to produce a magnetic field to oppose the decreasing magnetic field – resulting in a spark. Conservation of Energy. Yes, this is possible, as is no physical property to prevent it from happening. The constantly changing fields are called electromagnetic waves, or, as they are more commonly known, light. This will be covered in the EM Waves unit of this course. Yes. The induced magnetic field is produced by the induced current.
electromagnetic-induction-chapter-problems-3-2015-08-13.docx