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Select correct options among the following statements concerning the creation of magnetic fields.

a. The single electric charge produces a magnetic field at all points in the surrounding area.
b. The moving electric charge produces a magnetic field at all points in the surrounding area.
c. When the electric charges are distributed at rest it produces a magnetic field at all points in the surrounding area.
d. Current flowing in a conductor creates a magnetic field at all points in the surrounding area.
e. The magnetic field is created at all points in the surrounding region by the permanent magnet

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Collen Von
Collen VonLv2
19 Feb 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

1.Two uncharged, conducting spheres, A and B, are held at rest oninsulating stands and are in contact. A positively charged rod isbrought near sphere A. While the rod is in place, the two spheresare separated. How will the spheres be charged, if at all, afterthey are separated?
Sphere A Sphere B
(a) positive positive
(b) positive negative
(c) negative positive
(d) negative negative
(e) zero zero

2. A charged conductor is brought near an uncharged insulator.Which one of the following statements is true?
(a) Both objects will repel each other.
(b) Both objects will attract each other.
(c) Neither object exerts an electrical force on the other.
(d) The objects will repel each other only if the conductor has anegative charge.
(e) The objects will attract each other only if the conductor has apositive charge.

3. An electron is moved from point A, where the electric potentialis VA = –240 V, to point B, where the electric potential is VB =–360 V. What is the change in the electric
potential energy?
(a) 1.92×10–17 J (b) 2.04×10–17 J (c) 5.75×10–17 J (d) 8.98×10–17 J(e) 1.05×10–16 J

4. A -2q charge is located a distance d to the right of a +4qcharge, along the x
axis. At which point (or points) along the axis does the electricfield go to zero? To
solve this problem, consider an observer at point P, which is anarbitrary distance x from the +4q charge. Find the value (orvalues) for x (in terms of the separation distance d) where thetotal electric field vanishes.
(a) The electric field is never zero in the vicinity of thesecharges.
(b) The electric field is zero at x = -0.328d.
(c) The electric field is zero at x = +4.22d.
(d) The electric field is zero at both x = -2.26d and x =+2.26d.
(e) The electric field is zero at x = +3.41d.

5. point A is a distance L away from a point charge Q. Point B is adistance 4L away from Q. What is the ratio of the electrostaticpotential at B to that at A, i.e., what is VB/VA?
(a) 1/16
(b) 1/9
(c) 1/4
(d) 1/3
(e) can not be determined without specifying Q and L

6. Which one of the following statements best explains why it ispossible to define an electric potential
in a region of space that contains an electric field?
(a) Work must be done to bring two positive charges closertogether.
(b) Like charges repel one another and unlike charges attract oneanother.
(c) A positive charge will gain kinetic energy as it approaches anegative charge.
(d) The work required to bring two charges together is independentof the path taken.
(e) A negative charge will gain kinetic energy as it moves awayfrom another negative charge.

1-Which of the following general statements for any electric fieldlines are true? Give ALL correct answers in alphabetical order,without spaces, i.e., B, AC, BCD...

A) E-field lines do not begin or end in a charge-free region(except at infinity).
B) A point charge q, released from rest will initially move alongan E-field line.
C) E-field lines may cross.
D) E-field points outward from + charges.
E) E-field lines make circles around - charges.
F) Where the E-field lines are denser the E-field must bestronger.

2-a-Three charges, Q1, Q2, and Q3 are located in a straight line.The position of Q2 is 0.246 m to the right of Q1. Q3 is located0.136 m to the right of Q2. The force on Q2 due to its interactionwith Q3 is directed to the (Give ALL correct answers, i.e., B, AC,BCD...)

A) right if the two charges are negative.
B) left if the two charges have opposite signs.
C) right if the two charges have opposite signs.
D) left if the two charges are negative.
E) left if the two charges are positive.

b-In the above problem, Q1= 1.90x10-6 C, Q2=-3.22 x10-6 C, and Q3=3.18 x10-6 C. Calculate the total force on Q2. Give with the plussign for a force directed to the right.

c-Now the charges Q1= 1.90x10-6 C and Q2= -3.22 x10-6 C are fixedat their positions, distance 0.246 m apart, and the charge Q3= 3.18x10-6 C is moved along the straight line. For what position of Q3relative to Q1 is the net force on Q3 due to Q1 and Q2 zero? Usethe plus sign for Q3 to the right of Q1.

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