PHY F/SCIENTIST MOD MASTERING 24 MO
17th Edition
ISBN: 9780137319497
Author: Knight
Publisher: PEARSON
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Question
Chapter 39, Problem 33EAP
To determine
Part (a)
The value of constant a.
To determine
Part (b)
The value of x where it is most likely for particle to be found.
To determine
Part (c)
The range of positions for finding the particle around x = 0.0 cm where probability of finding the particle is 75%.
To determine
Part (d)
By drawing the probability density graph and shading region to interpret answer received in
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4.) The diagram shows the electric field lines of a positively charged conducting sphere of
radius R and charge Q.
A
B
Points A and B are located on the same field line.
A proton is placed at A and released from rest. The magnitude of the work done by the electric field in
moving the proton from A to B is 1.7×10-16 J. Point A is at a distance of 5.0×10-2m from the centre of
the sphere. Point B is at a distance of 1.0×10-1 m from the centre of the sphere.
(a) Explain why the electric potential decreases from A to B. [2]
(b) Draw, on the axes, the variation of electric potential V with distance r from the centre of the
sphere.
R
[2]
(c(i)) Calculate the electric potential difference between points A and B. [1]
(c(ii)) Determine the charge Q of the sphere. [2]
(d) The concept of potential is also used in the context of gravitational fields. Suggest why scientists
developed a common terminology to describe different types of fields. [1]
3.) The graph shows how current I varies with potential difference V across a component X.
904
80-
70-
60-
50-
I/MA
40-
30-
20-
10-
0+
0
0.5
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VIV
Component X and a cell of negligible internal resistance are placed in a circuit.
A variable resistor R is connected in series with component X. The ammeter reads 20mA.
4.0V
4.0V
Component X and the cell are now placed in a potential divider circuit.
(a) Outline why component X is considered non-ohmic. [1]
(b(i)) Determine the resistance of the variable resistor. [3]
(b(ii)) Calculate the power dissipated in the circuit. [1]
(c(i)) State the range of current that the ammeter can measure as the slider S of the potential divider
is moved from Q to P. [1]
(c(ii)) Describe, by reference to your answer for (c)(i), the advantage of the potential divider
arrangement over the arrangement in (b).
Chapter 39 Solutions
PHY F/SCIENTIST MOD MASTERING 24 MO
Ch. 39 - Prob. 1CQCh. 39 - Prob. 2CQCh. 39 - Prob. 3CQCh. 39 - Prob. 4CQCh. 39 - Prob. 5CQCh. 39 - Prob. 6CQCh. 39 - Prob. 1EAPCh. 39 - Prob. 2EAPCh. 39 - Prob. 3EAPCh. 39 - Prob. 4EAP
Ch. 39 - Prob. 5EAPCh. 39 - Prob. 6EAPCh. 39 - Prob. 7EAPCh. 39 - Prob. 8EAPCh. 39 - Prob. 9EAPCh. 39 - Prob. 10EAPCh. 39 - Prob. 11EAPCh. 39 - Prob. 12EAPCh. 39 - Prob. 13EAPCh. 39 - Prob. 14EAPCh. 39 - Prob. 15EAPCh. 39 - Prob. 16EAPCh. 39 - Prob. 17EAPCh. 39 - Prob. 18EAPCh. 39 - A 1 .5- m-wavelength laser pulse is transmitted...Ch. 39 - Prob. 20EAPCh. 39 - Prob. 21EAPCh. 39 - Prob. 22EAPCh. 39 - Prob. 23EAPCh. 39 - Prob. 24EAPCh. 39 - Prob. 25EAPCh. 39 - Prob. 26EAPCh. 39 - Prob. 27EAPCh. 39 - Prob. 28EAPCh. 39 - Prob. 29EAPCh. 39 - Prob. 30EAPCh. 39 - Prob. 31EAPCh. 39 - Prob. 32EAPCh. 39 - Prob. 33EAPCh. 39 - Prob. 34EAPCh. 39 - Prob. 35EAPCh. 39 - Prob. 36EAPCh. 39 - Prob. 37EAPCh. 39 - Prob. 38EAPCh. 39 - Prob. 39EAPCh. 39 - A pulse of light is created by the superposition...Ch. 39 - Prob. 41EAPCh. 39 - Prob. 42EAPCh. 39 - Prob. 43EAPCh. 39 - Prob. 44EAPCh. 39 - Prob. 45EAPCh. 39 - Prob. 46EAPCh. 39 - Prob. 47EAPCh. 39 - Prob. 48EAPCh. 39 - Prob. 49EAPCh. 39 - Prob. 50EAPCh. 39 - Prob. 51EAP
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