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A plastic rod is charged up by rubbing a wool cloth, and brought to an
initially neutral metallic sphere. It is allowed to touch the sphere for a few
seconds and then is separated from the sphere by a small distance. After
the rod is separated, the rod... - 🧠ANSWER ✔✔is repelled by the sphere
The electron-volt is a unit of - 🧠ANSWER ✔✔energy.
If the voltage at a point in space is zero, then the electric field must be... -
🧠ANSWER ✔✔impossible to determine based on the information given.
, A proton, initially at rest, is accelerated through an electric potential
difference of 500V. What is the kinetic energy of the proton? - 🧠ANSWER
✔✔500*(1.6e-19)=8.0e-17
An atomic nucleus has a charge of +40e. An Electron is 10^-9 from the
nucleus. What is the Force on the electron? - 🧠ANSWER ✔✔9.2nN **
If a conductor is in electrostatic equilibrium near an electric charge... -
🧠ANSWER ✔✔the electric field on the surface of the conductor is
perpendicular to the surface
A 5.0-C charge is 10m from a small test charge. What is the magnitude of
the electric field at the location of the test charge? - 🧠ANSWER ✔✔4.5e^8
N/C
A neutral atom always has.. - 🧠ANSWER ✔✔the same number of protons
as electrons.
Electric field lines near positive point charges.. - 🧠ANSWER ✔✔radiate
outward.
The capacitance of a capacitor depends on... - 🧠ANSWER ✔✔**