Question
Asked Nov 21, 2019
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A point charge of -4.00 nC is located at (0, 1.00) m. What is the magnitude of
the electric field due to the point charge at (4.00, -2.00) m?
a. 1.15 N/C
b. -0.864 N/C
c. 1.44 N/C
d. -1.15 N/C

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Expert Answer

Step 1

Write the expression for electric field,

kq
E =
Irl
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kq E = Irl

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Step 2

The value for vector r is,

F(0-4)i+(1-(-2))i
=-4i+3j
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F(0-4)i+(1-(-2))i =-4i+3j

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Step 3

The magnitude o...

2
l=v-4)
+32
5m
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2 l=v-4) +32 5m

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Science

Physics

Electric Charges and Fields

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