Question 1

A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm2 on its surfaces.What is the electric field strength 3.00 mm outside the surface of the conductor?
(ε0 = 8.85 × 10-12 C2/N • m2)

Accepted Answer

A)   4.52 × 105 N/C
B)   2.26 × 105 N/C
C)   9.04 × 105 N/C
D)   0.452 N/C
E)   0.226 N/C

Question 2

Two long straight parallel lines,#1 and #2,carry uniform positive linear charge densities.The charge density on line #2 is twice as great as the charge density on line #1.The locus of points where the electric field due to these lines is zero is

Accepted Answer

A)   along a line between the lines closer to line #2 than line #1.
B)   at a point midway between the lines.
C)   along a line perpendicular to lines #1 and #2.
D)   along a line between the lines closer to line #1 than line #2.

Question 3

A nonuniform electric field is directed along the x-axis at all points in space.This magnitude of the field varies with x,but not with respect to y or z.The axis of a cylindrical surface,0.80 m long and 0.20 m in diameter,is aligned parallel to the x-axis,as shown in the figure.The electric fields E1 and E2,at the ends of the cylindrical surface,have magnitudes of 9000 N/C and 5000 N/C respectively,and are directed as shown.(ε0 = 8.85 × 10-12 C2/N • m2) The charge enclosed by the cylindrical surface is closest to 1 and E2,at the ends of the cylindrical surface,have magnitudes of 9000 N/C and 5000 N/C respectively,and are directed as shown.(ε0 = 8.85 × 10-12 C2/N • m2) The charge enclosed by the cylindrical surface is closest to   A)  -1.1 nC. B)  1.1 nC. C)  -2.4 nC. D)  -4.8 nC. E)  4.8 nC." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   -1.1 nC.
B)   1.1 nC.
C)   -2.4 nC.
D)   -4.8 nC.
E)   4.8 nC.

Question 4

Two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other.The upper sheet carries +5.00 µC/m2.The electric field midway between the sheets is 4.25 × 105 N/C pointing downward.What is the surface charge density on the lower sheet?
(ε0 = 8.85 × 10-12 C2/N • m2)

Accepted Answer

Question 5

A hollow conducting spherical shell has radii of 0.80 m and 1.20 m,as shown in the figure.The sphere carries a net excess charge of -500 nC.A point charge of +300 nC is present at the center.
(k = 1/4πε0 = 8.99 × 109 N • m2/C) The radial component of the electric field at a point that is 0.60 m from the center is closest to 0 = 8.99 × 109 N • m2/C) The radial component of the electric field at a point that is 0.60 m from the center is closest to   A)  zero. B)  +5000 N/C. C)  +7500 N/C. D)  -5000 N/C. E)  -7500 N/C." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   zero.
B)   +5000 N/C.
C)   +7500 N/C.
D)   -5000 N/C.
E)   -7500 N/C.

Question 6

The cross section of a long coaxial cable is shown in the figure,with radii as given.The linear charge density on the inner conductor is -30 nC/m and the linear charge density on the outer conductor is
-70 nC/m. The inner and outer cylindrical surfaces are respectively denoted by A,B,C,and D,as shown.(ε0 = 8.85 × 10-12 C2/N • m2)  The radial component of the electric field at a point that 34 mm from the axis is closest to 0 = 8.85 × 10-12 C2/N • m2)  The radial component of the electric field at a point that 34 mm from the axis is closest to   A)  -16,000 N/C. B)  +16,000 N/C. C)  -37,000 N/C. D)  +37,000 N/C. E)  zero" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   -16,000 N/C.
B)   +16,000 N/C.
C)   -37,000 N/C.
D)   +37,000 N/C.
E)   zero

Exam 24: Gausss Law

Correct Answer
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Correct Answer
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A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm² on its surfaces.What is the electric field strength 3.00 mm outside the surface of the conductor? (ε₀ = 8.85 × 10^-12 C²/N • m²)

Correct Answer
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Correct Answer
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Correct Answer
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Two long straight parallel lines,#1 and #2,carry uniform positive linear charge densities.The charge density on line #2 is twice as great as the charge density on line #1.The locus of points where the electric field due to these lines is zero is

Correct Answer
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Exam 24: Gausss Law

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm2 on its surfaces.What is the electric field strength 3.00 mm outside the surface of the conductor? (ε0 = 8.85 × 10-12 C2/N • m2)

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Two long straight parallel lines,#1 and #2,carry uniform positive linear charge densities.The charge density on line #2 is twice as great as the charge density on line #1.The locus of points where the electric field due to these lines is zero is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

A very large sheet of a conductor carries a uniform charge density of 4.00 pC/mm² on its surfaces.What is the electric field strength 3.00 mm outside the surface of the conductor? (ε₀ = 8.85 × 10^-12 C²/N • m²)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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