4. A thin semicircular rod has a total charge +Q uniformly distributed Let Fp and FR represent the force on the test charge due to the point along it. A negative point charge-Q is placed as shown. A test charge +q is placed at point C. (Point C is equidistant from-Q and from all points on the rod.) charge and the rod respectively. 4. Is the magnitude of Fp greater than, less than, or equal to the magnitude of FR? Explain how you can tell. b. Is the magnitude of the net force on +q greater than, less than, or equal to the magnitude of F,? Explain. c. A second negative point charge -Q is placed as shown. Is the magnitude of the net electric force on +q greater than, less than, or equal to the magnitude of the net electric force on +q in part b? Explain.

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Case F
4. A thin semicircular rod has a total charge +Q uniformly distributed
Let Fp and FR represent the force on the test charge due to the point
along it. A negative point charge -Q is placed as shown. A test
charge +q is placed at point C. (Point C is equidistant from -Q and
case F? Explain.
es?
from all points on the rod.)
-Q
C
charge and the rod respectively.
Is the magnitude of Fp greater than, less than, or equal to the
magnitude of FR? Explain how you can tell.
a.
b. Is the magnitude of the net force on +q greater than, less than, or equal to the magnitude of
F,? Explain.
c. A second negative point charge -Q is placed as shown.
Is the magnitude of the net electric force on +q greater than,
less than, or equal to the magnitude of the net electric force
on +q in part b? Explain.
C
OPearson Custom Publishing
Tutorials in Introductory Physics
McDermott, Shaffer, & P.E.G., U. Wash.
Updated Preliminary Second Edition, 2011
Transcribed Image Text:Case F 4. A thin semicircular rod has a total charge +Q uniformly distributed Let Fp and FR represent the force on the test charge due to the point along it. A negative point charge -Q is placed as shown. A test charge +q is placed at point C. (Point C is equidistant from -Q and case F? Explain. es? from all points on the rod.) -Q C charge and the rod respectively. Is the magnitude of Fp greater than, less than, or equal to the magnitude of FR? Explain how you can tell. a. b. Is the magnitude of the net force on +q greater than, less than, or equal to the magnitude of F,? Explain. c. A second negative point charge -Q is placed as shown. Is the magnitude of the net electric force on +q greater than, less than, or equal to the magnitude of the net electric force on +q in part b? Explain. C OPearson Custom Publishing Tutorials in Introductory Physics McDermott, Shaffer, & P.E.G., U. Wash. Updated Preliminary Second Edition, 2011
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