Tutorials In Introductory Physics: Homework
1st Edition
ISBN: 9780130662453
Author: Lillian C. McDermott, Peter S. Shaffer
Publisher: PEARSON
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Question
Chapter 19.4, Problem 1bTH
To determine
Whether the speed of the negative test charge at point Y is greater than, less than or equal to the speed
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Consider an electron, of charge magnitude e = 1.602 × 10-¹⁹ C and mass me = 9.11 x 10-31 kg, moving in an elect
field with an electric field magnitude E = 7 x 10² N/C, similar to what Thana observed in the simulation. Let the leng
the plates be L = 50 cm, and the distance between them be d = 20 cm. Find the maximum speed, v, the electron co
be moving if it enters the space halfway between and parallel to the two plates to just barely strike one of the plates
7.01e+06 X m/s
If the field is pointing upward, which plate will Thana conclude the electron strikes at this speed?
The lower plate, because the electron is negatively charged.
The lower plate, because the electron is attracted to the negative plate.
The upper plate, because we are only considering the magnitude of the electron charge, and magnitudes are
always positive.
O
The upper plate, because the electron charge magnitude is positive.
A charge Q=7.3×10−4 C is distributed uniformly along a rod of length L, extending from =−28.8/2 cm to =+28.8/2 cm, as shown in the diagram below. A charge q=4.15×10−6 C, and the same sign as Q , is placed at (D,0), where D=55 cm.
Consider the situation as described above and the following statements.
Check each box that corresponds to a true statement. Select "None of the above" if none of them are true.A. The total force on q is generally in the +x direction.B. The charge on a segment of the rod of infinitesimal length dy is given by dQ=(Q/L)dyC. The y-components of the force on q cancel.D. The magnitude of the force on charge q due to the small segment dy is dF=(kqQ/4Lr2)dyE. Given that both charges are positive, the net force on q in the y direction is upwards.F. Given that both charges are positive, the net force on q in the x direction is to the left.G. None of the above.
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Chapter 19 Solutions
Tutorials In Introductory Physics: Homework
Ch. 19.1 - Draw a separate free-body diagram for each ball....Ch. 19.1 - Suppose the charge on the second ball is reduced...Ch. 19.1 - Predict what will happen if the net charge on ball...Ch. 19.1 - How does Coulomb’s law apply to situations in...Ch. 19.1 - In cases A and B shown at right there are two...Ch. 19.1 - In case C, two positive point charges +2Q are each...Ch. 19.1 - In case E a positive point charge with +Q is a...Ch. 19.1 - Is the magnitude of FPgreater than, less than, or...Ch. 19.1 - Is the magnitude of the net force on +qgreater...Ch. 19.1 - A second negative point charge Q is placed as...
Ch. 19.1 - A thin semicircular rod like the one in problem 4...Ch. 19.1 - Sketch the charge distribution on the rod.Ch. 19.1 - Is there a non-zero net electric force on the rod?...Ch. 19.1 - Is there a non-zero net electric force on the...Ch. 19.1 - State whether the magnitude of the net electric...Ch. 19.2 - Prob. 1aTHCh. 19.2 - Consider an imaginary surface in a uniform...Ch. 19.2 - Write an expression for the net electric flux net...Ch. 19.2 - Prob. 2aTHCh. 19.2 - Prob. 2bTHCh. 19.2 - Consider the surface element A itself as composed...Ch. 19.2 - Consider the left side of the box as Consisting of...Ch. 19.2 - The loop is held to the right of a positive point...Ch. 19.2 - Prob. 3bTHCh. 19.2 - Suppose that the new charge located to the right...Ch. 19.3 - Prob. 1aTHCh. 19.3 - Prob. 1bTHCh. 19.3 - Suppose that the curved portion of the Gaussian...Ch. 19.3 - A Second point charge +q is placed to the right of...Ch. 19.3 - Sketch a vector at each of points AD to represent...Ch. 19.3 - Sketch a vector at each of points AD to represent...Ch. 19.3 - Sketch a vector at each of points AD to represent...Ch. 19.3 - Sketch the net electric field at each of points...Ch. 19.3 - Calculate the magnitude of the electric field at...Ch. 19.4 - A small test charge qo travels from point X to...Ch. 19.4 - Prob. 1bTHCh. 19.4 - Points B and C are a distance ro away from the...Ch. 19.4 - A large metal sphere with zero net charge is now...Ch. 19.4 - Draw arrows on the diagram to indicate the...Ch. 19.4 - A positively charged test particle moves from...Ch. 19.4 - A positively charged test particle moves from A to...Ch. 19.4 - Find the magnitude and direction of the electric...Ch. 19.4 - A particle of mass mo and charge qo is released...Ch. 19.5 - The Surface area of the face of each plate is AI ....Ch. 19.5 - A new capacitor is formed by attaching two...Ch. 19.5 - Find the charge density on the plates. Explain.Ch. 19.5 - Find the electric potential difference between the...Ch. 19.5 - Show that the capacitance of the enlarged plates...
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