2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
1/8
Skip to Main Content
Quiz 2: Electric eld and Electric Potential
Difference
Started: Feb 7 at 9:58pm
Quiz Instructions
The quiz:
Covers the CH 16 and CH 17 material from Modules 1 & 2.
Is limited to 25 minutes
Allows 1 attempt.
Is worth 25 points.
Submit this assignment by 11:59 p.m. (ET) on Feb 8.
2 pts
Question 1
Three equal positive point charges +q are placed at the corners of a square
of side d as shown in the gure. Which one of the arrows shown represents
the direction of the net electric eld at the center of the square?
A
B
C
D
Online Residential Athletics
Sign InRequest Info Apply Now Visit Us Create Guest Account
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
2/8
2 pts
Question 2
Two stationary point charges q1 and q2 are shown in the gure along with a
sketch of some eld lines representing the electric eld produced by them.
What can you deduce from the sketch?
q1 and q2 have the same sign; the magnitude of q1 is greater than the magnitude
of q2.
q1 is positive and q2 is negative; the magnitude of q1 is greater than the
magnitude of q2.
q1 is negative and q2 is positive; the magnitude of q1 is less than the magnitude of
q2.
q1 is negative and q2 is positive; the magnitudes are equal.
q1 and q2 have the same sign; the magnitudes are equal.
2 pts
Question 3
Which one of the arrows shown in the gure best represents the direction of
the electric eld between the two uniformly charged metal plates?
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
3/8
A
B
C
D
None of the above
2 pts
Question 4
A proton is moving, due to the inuence of the electric eld, in the direction
of the electric eld lines. Which statement is true?
It is moving from lower potential to higher potential and gaining electric potential
energy.
It is moving from higher potential to lower potential and gaining electric potential
energy.
It is moving from higher potential to lower potential and losing electric potential
energy.
Both its electric potential and electric potential energy remain constant.
It is moving from lower potential to higher potential and losing electric potential
energy.
2 pts
Question 5
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
4/8
The electron-volt is a unit of
electric potential.
charge.
energy.
electric force.
electric eld.
2 pts
Question 6
Four charged particles (two having a charge +Q and two having a charge -Q)
are arranged in the xy-plane, as shown in the gure. These particles are all
equidistant from the origin. The electric potential (relative to innity) at point
P on the z-axis due to these particles, is
positive.
zero.
negative.
impossible to determine based on the information given.
3 pts
Question 7
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
5/8
The next six questions all refer to the same situation below. The gure is reproduced
in each question for reference. You may be able to use results from one part to
complete another part.
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the magnitude of the electric eld at the origin due to Q.
-9
900 N/C
- 900 N/C
1.44 x 10 N/C
-16
180 N/C
1 pts
Question 8
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the direction of the electric eld at the origin due to Q.
-9
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
6/8
Right
Left
Away from the origin.
Toward the origin.
3 pts
Question 9
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the magnitude of the force on an electron at the origin due to Q.
-9
1.44 x 10 N
-16
3.6 x 10 N
-6
2.88 x 10 N
-17
5.76 x 10 N
-27
1 pts
Question 10
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
7/8
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the direction of the force on an electron at the origin due to Q.
-9
Left
Right
Away from the origin.
Toward the origin.
3 pts
Question 11
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the value of the absolute potential at the origin due to Q.
-9
-180 V
180 V
2/7/24, 10:21 PM
Quiz: Quiz 2: Electric field and Electric Potential Difference
8/8
Quiz saved at 10:21pm
7.2 x 10 V
-9
180 J
2 pts
Question 12
A - 4 x 10 C point charge, Q, is at (20cm, 0) as shown above.
Find the potential energy of a proton at the origin due to Q.
-9
-180 eV
180 eV
-1 eV
1 eV
SUBMIT QUIZ
Powered by TCPDF (www.tcpdf.org)
