23 Cards in this Set
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The absolute potential at the center of a square is 3.0V when a charge of +Q is located at one of the square's corners. What is the absolute potential at the square's center when a second charge of -Q is placed at one of the remaining corners?
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Zero
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Two charges are separated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of 3d, what are the new mutual forces?
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F/9
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A proton carries a
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Positive charge
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Two charged objects are separated by a distance d. The first charge is larger in magnitude than the second charge.
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The charges exert forces on each other equal in magnitude and opposite in direction.
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The electric field is shown
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↓ ↓ ↓↓
Increases to the right
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Is it possible for a positive and a negative charge to attract each other?
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Yes, they always attract
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A surface on which all points are at the same potential is referred to as
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An equipotential surface
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If a Cu2+ ion drops through a potential difference of 12 V, it will acquire a kinetic energy (in the absence of friction) of
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24eV
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Two 1.50 microC charges are at the ends of a meter stick. Find the absolute electrical potential for the center of the meter stick
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5.40x10^4 V
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One couloumb per volt is a
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Farad
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An atomic number nucleus has a charge of +40e. What is the magnitude of the electric field at a distance of 1.0m from the nucleus?
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5.8x10^-8 N/c
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A postively charged rod is brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be charged
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Positive
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Sphere A carries a net positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?
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Sphere B is now negatively charged
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A 12-V battery maintains the electrical potential difference between two parallel metal plates separated by 10 cm. What is the electric field between the plates?
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120 V/m
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A uniform electric field, with a magnitude of 500 V/m, points in the +x direction. If the electric potential at x = 5.0m is 2500V, what is the potential at x = 2.0 m? (Hint: Does the potential go up or down as you move along an electric field line?)
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4000V
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Is it possible to have a zero electric field value between two positive charges along the line joining the two charges?
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Yes, regardless of the magnitude of the two charges
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Several electrons are placed on a hollow conducting sphere. They
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Become uniformly distributed on the sphere's outer surface
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If the electric field between the plates of a given capacitor is weakened, the capacitance of that capacitor
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Does not change
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Sphere A carries a net charge and sphere B is neutral. They are placed near each other on a insulated table. Which statement best describes the electrostatic force between them?
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There is a force of attraction between them
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One electron-volt corresponds to
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1.6x10^-19 J
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A solid block of metal in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's interior.
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There is no electric field in the block's interior
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It takes 20J of energy to move in 5.0C of charge from point A to point B. What is the potential difference between points A and B?
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4.0 V
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The model of the atom shows a
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Nucleus consisting of both proton and neutrons, surrounded by a cloud of electrons.
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PHYS 202: Exam 1