
Gauss's law, 1
Authored by Jonathan Peter
Science, Physics
11th - 12th Grade
Used 57+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A rectangular loop is held perpendicular to a uniform E-field (the loop's normal vector, dA, is parallel to the E-field direction). At what angle to its normal does the loop have to be turned through so the electric flux is one half of its original value?
15 degrees
30 degrees
45 degrees
60 degrees
90 degrees
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The normal vector to a rectangular loop makes an angle of 35 degrees with the vector describing the direction of an applied electric field. What is the Electric Flux through the loop, given the following data? E = 52,000 N/C, width = 35 cm, length = 75 cm
1.1 x 10^4 Nm*m/C
7.8 x 10^3 Nm*m/C
1.1 x 10^8 Nm*m/C
7.8 x 10^7 Nm*m/C
zero
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A positive charge is enclosed by a spherical surface. What direction is the electric flux relative to the surface/
tangent
from the inside to the outside of the surface
from the outside to the inside of the surface
the lines do not pass through the surface
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A charge of magnitude, q, is at the center of a sphere of radius r. What is the electric flux at the surface of the sphere? r = 0.53 m, q = 5.0 x 10^-6 C
5.6 x 10^5 Nm*m/C
6.5 x 10^5 Nm*m/C
7.3 x 10^5 Nm*m/C
1.1 x 10^6 Nm*m/C
1.3 x 10^6 Nm*m/C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You are trying to calculate the e-field outside a positive line of charge. The Gaussian surface should be what kind of geometrical object?
circle
cylinder
cube
sphere
rectangle
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A metal sphere of radius R is given a positive charge, q. What is the electric field at a distance r from the center, where r > R?
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A solid non-conducting sphere has a radius R and a charge of +Q uniformly distributed throughout its volume. Which graph below describes the electric field as a function of distance r from the center of the sphere?
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