Physics 1402 Final Exam Practice (Questions with Answers) 2023 Latest Graded
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Physics 1402
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Physics 1402
Physics 1402 Final Exam Practice (Questions with Answers) 2023 Latest Graded. How much work must we do on an electron to move it from point A, which is at a potential of +50 V,
to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? -
answer1.60 x 10^-17 J
...
Physics 1402 Final Exam Practice Questions with Complete Solution 2023 (Graded 100%) Physics 1402 Final Exam with Complete Solution A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. 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 - answeris repelled by the sphere Three equal charges +Q are at three of the corners of a square of side d. A fourth charge +Q of equal magnitude is at the center of the square as shown in the figure. Which one of the arrows shown represents the net force acting on the charge at the center of the square? - answerB A negatively-charged rod is brought close to (but does not touch) two neutral spheres that are in contact with each other but insulated from the ground. If the two sphere are then separated, what kind of charge will be on the spheres? - answerThe sphere near the charged rod becomes positive and the other one becomes negative A small charged plastic ball is vertically above another charged small ball in a frictionless test tube as shown in the figure. The balls are in equilibrium a distance d apart. If the charge on each ball is doubled, the equilibrium distance between the balls in the test tube would become - answer2d A hydrogen nucleus, which has a charge of +e, is situated to the left of a carbon nucleus, which has a charge +6e. Which statement is true? - answerthe electrical force experienced by the hydrogen nucleus is to the left, and the magnitude is equal to the force exerted on the carbon nucleus How many electrons are necessary to produce 1.0 C of negative charge? - answer6.3 x 10^18 Two electrons are 20.0mm apart at closest approach. What is the magnitude of the maximum electric force that they exert on each other? - answer5.8 x 10^-25 Two tiny particles having charges of +5.00 uC and +7.00 uC are placed along the x-axis. The +5.00-uC particle is at x=00.0 cm, and the other particle is at x=100 cm. Where on the x-axis must a third charged particle be placed so that it does not experience any net electrostatic force due to the other two particles? - answer45.8 cm Two tiny beads, each of mass 3.2 g, carry equal-magnitude charges. When they are placed 6.4 cm apart and released in outer space, they begin to accelerate towards each other at 538m/s2. What is the magnitude of the charge on each bead? - a nswer890 nC A point charge of +3.00 uC and a second charge Q are initially very far apart. If it takes 29.0 J of work to bring them to a final configuration in which the +3.00 uC charge is at the point x= 1.00 mm, y = 1.00 mm, and the second charge Q is at the point x = 1.00 mm, y = 3.00 mm, find the magnitude of the charge Q. - answer2.15 uC An electron is initially moving to the right when it enters a uniform electric field directed upwards, as shown in the figure. Which trajectory (X, Y, Z, or W) will the electron follow in the field? -
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