Field Lines Faradays Model The field of a
![Faraday’s Model ] The field of a point charge extended vectors into lines radiating](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-2.jpg "Faraday’s Model ] The field of a point charge extended vectors into lines radiating")
![Field Lines vs Vector ] The electric field is a vector quantity. • Measured](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-3.jpg "Field Lines vs Vector ] The electric field is a vector quantity. • Measured")
![Field Line Properties ] The field vector is tangent to the field line at](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-4.jpg "Field Line Properties ] The field vector is tangent to the field line at")
![Dipole ] The field lines for two equal and opposite point charges form a](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-5.jpg "Dipole ] The field lines for two equal and opposite point charges form a")
![Conductor Fields ] Charges move to the surface of a conductor. ] The field](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-6.jpg "Conductor Fields ] Charges move to the surface of a conductor. ] The field")
![Inside Space ] The inside of a conductor has no field because the charges](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-7.jpg "Inside Space ] The inside of a conductor has no field because the charges")
![Faraday Cage ] The conductor doesn’t need to be solid to block a field.](https://slidetodoc.com/presentation_image_h2/4be96f66a38d6250a6ff9a6f50c3f67f/image-8.jpg "Faraday Cage ] The conductor doesn’t need to be solid to block a field.")
- Slides: 8
Field Lines
Faraday’s Model ] The field of a point charge extended vectors into lines radiating from the point. ] These are called field lines.
Field Lines vs Vector ] The electric field is a vector quantity. • Measured at each point • Show magnitude and direction ] The field lines connect separate vectors. • Show the path of motion for a test charge
Field Line Properties ] The field vector is tangent to the field line at each point. ] The density of field lines is related to the magnitude of the field. ] Field lines cannot cross each other.
Dipole ] The field lines for two equal and opposite point charges form a special pattern called a dipole. ] All the lines start at the positive charge and end at the negative charge.
Conductor Fields ] Charges move to the surface of a conductor. ] The field lines remain perpendicular to the surface of the conductor. • True for straight or curved ] Inside the conductor the field is zero.
Inside Space ] The inside of a conductor has no field because the charges have moved to the surface and canceled the field inside. ] If there are no isolated charges in a space surrounded by a conductor the field is zero inside.
Faraday Cage ] The conductor doesn’t need to be solid to block a field. ] The enclosure is a Faraday cage. • Field between the generators and the cage • Not within the cage next