The Electric Field

Topic Page

Questions

• What are the rules for drawing electric field patterns?
• Is gravity an action-at-a-distance force?
• What is the size of the electic field inside a charged conductor?
• How can the strength of an electric field be quantified?
• What is a Van der Graaf generator?
• How do lightning rods serve to protect buildings from lightning strikes?
• Why is the electric field inside a conductor zero?
• How does permittivity affect electric field intensity?
• How does the strength of an object's electric field change with distance?
• How does electric field affect capacitance?
• How does electric field relate to voltage?
• How does an electric field affect the movement of a charge?
• Do electric fields affect humans?
• How can electric field lines be directed?
• How do electric fields accelerate particles?
• Can an electric field exist in a vacuum?
• How can an electric field be produced in a metal?
• How can an electric field be detected?
• Does an electric field affect light?
• What are some examples of electric fields?
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• Why is the electric field negative?
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• What is the magnitude of the electric field at a point 0.0075 m from a 0.0035 C charge?
• An infinitely long thin wire carries a uniform charge per unit length #q#. Find the electric field at a distance of #R# units from the wire?
• Do humans have gravity fields that can warp Space-Time ?
• If the wire were wrapped around nickel instead of the iron core and the original current were applied, how strong would the magnetic field be?
• How many turns of wire would be needed around the core of nickel to get a magnetic field of 3.43 x 10-3T with a current of 800mA?
• A copper wire is wrapped 65 times around an unknown core of length 28cm. The current in the wire is 800mA and the magnetic field due to the electromagnet is 1.63 x 10-2T. What is the most likely material the wire is wrapped around?
• A wire of length #0.680 m# carries a current of #21.0 A#. In the presence of a #0.470 T# magnetic field, the wire experiences a force of #5.41 N#. What is the angle (less than #90°#) between the wire and the magnetic field?
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• Why do the field lines of an electric or magnetic field never cross?
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• What is magnitude of electric field?
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• A photon is neutral. Yet it is said to possess an electric field component (as well as a magnetic component). If it has an electric field, why is a photon not negatively charged?
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• How would a test charge placed in a non-uniform electric field behave?
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• If electric field in a point is zero, is it possible that the potential of the point is also zero?
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• What is the net electric field?
• Electrostatics question?