Induced EMF in a moving conductor
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- A 1.2m length of wire is pulled through a uniform 0.045 T magnetic field at 6.7m/s as shown. What emf is generated between the ends of the wire?
- A solid conductor travels at 150m/s across a uniform 0.045T magnetic field. Which side is positively charged and what is the emf across this block?
- The circular loop of wire shown below has an area of 0.40 and is in a 0.60T magnetic field. This filed increased to 1.40 T in 0.25 .
- A 0.050m long conducting wire is moved through a 1.5 T magnetic field as shown below.
What is the magnitude of the emf generated between its ends, and in what direction do the electrons in the conductor initially move?
- A circular loop of resistance 1.2 is pulled a distance of 0.40m into a perpendicular magnetic field as shown below.
an average current of 0.50A is produced in the coil during this event. Calculate the constant speed with which the coil was pulled.
- 0.10 m/s
- 0.75 m/s
- 1.9 m/s
- 2.4 m/s
- A 0.75 m conducting rod is moved at 8.0m/s across a 0.25 T magnetic field along rails. The electrical resistance of the system is 5.0 . What are the magnitude and direction through point ?
- A 200-turn coil has a 15.2 V potential difference induced in it when the magnetic field changes from 0.42 T to 0.22 T in the opposite direction in 3.2 ×10?2 . What is the radius of this coil?
- 3.5 × 10?2m
- 5.1 × 10?2m
- 5.9 × 10?2m
- 6.2 × 10?2m