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Cards in this deck (9)
- 1Suppose that a picture of electric field lines is drawn following the convention that 2 field lines emerge from a small sphere with 2 pC of charge. In this picture there is an irregular closed surface, the interior of which is hidden, as shown below. The net amount of charge inside the closed surface must be:+4 pC
- 2Find the magnitude of the electric field produced by a point charge q = 3.96 AnanoCoulomb a distance r = 3.6 meters from the charge in units of N/C.E=kQ/r^2
(8.99x10^9)x(3.96x10^-9)/(3.6)^2= 2.746 - 3A certain physics textbook shows a region of space in which two electric field lines cross each other. We should conclude thatAuthor of textbook made a mistake
- 4A cube with sides of area 24 cm2 contains a 48.1 nanoCoulomb charge. Find the flux of the electric field through the surface of the cube in units of Nm2/C.E = Q/0
(48.1 x 10^-9 C) / (8.85 x 10^-12 c^2/Nm^2) = 5435.028 Nm^2/C - 5Charges Q1 and Q2 are situated as shown below. The electric field is zero at point P. What conclusions can be drawn about the charges Q1and Q2?II. The magnitude of Q1 is greater than the magnitude of Q2.
IV. Q1 and Q2 have the same sign.
II and IV are correct
- 6A positive charge is placed at one of 3 locations in a region where the electric field is uniform. Compare the magnitude F of the electric force on the charge at the different locations.F is the same, but not zero
- 7A negatively charged balloon is attracted to a neutral wooden cabinet due to polarization. Which one of the following diagrams best depict why this occurs?D
- 8In the early universe and in stars, deuterium nuclei are produced from the combination of one proton and one neutron, with the release of a gamma ray. What is the charge on a deuterium nucleus in units of qe = 1.6*10-19 C?1
- 9Two uniformly charged spheres are firmly fastened to and electrically insulated from frictionless pucks on an air table. The charge on sphere 2 is three times the charge on sphere 1. Which force diagram correctly shows the magnitude and direction of the electrostatic forces?5
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- Flashcards on Untitled, created by Cailey Nelson on 01/10/2018.
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- Cailey Nelson
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