Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
How does electric field strength vary with distance from a point charge?
inversely proportional to distance
directly proportional to distance
directly proportional to the square of the distance
inversely proportional to the square of the distance
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In the formula E = V / d for uniform electric fields, what does d represent?
potential difference
charge
separation between the plates
electric field strength
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Which of the following is true about electric field strength?
it indicates both magnitude and direction
it is a scalar quantity
it points in the direction a negative charge would move
it is always uniform in an electric field
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Calculate the electric field strength 0.1 m from a -2 nC charge.
-1,798 N C-1
-4,506 N C-1
-1,724 N C-1
-2,605 N C-1
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Calculate the electric field strength 0.4 m from a +3 nC charge.
N C-1
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The electric field strength at a distance r from a +4nC charge is 8.99 N C-1. Calculate the distance r.
m
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Two point charges are placed 2.4 m apart. One of the charges is +1 nC and the other is +2 nC. Calculate the electric field strength at the midpoint between the two point charges.
N C-1
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Two point charges are placed 3 m apart. One charge is -1.5 nC and the other is +2nC. Calculate the electric field strength at the midpoint between the two charges.
N C-1
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What is the electric field strength at a distance of infinity from a point charge of 2 nC?
N C-1
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Calculate the electric field strength at a point 0.5 meters away from a point charge of 6×10−6 C in a vacuum.
4.32×108N C−1
2.16×105N C−1
1.08×105N C−1
1.08×108N C−1
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What is the electric field strength 2 meters away from a point charge of 2×10−6 C in a vacuum?
4,496 N C-1
6,050 N C-1
1 x 107 N C-1
4,505 N C-1
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A charge of 5×10−6 C creates an electric field. What is the field strength at a distance of 1 m?
4.3×104 N C2
9×104 N C−1
9×104 N C2
4.5×104 N C−1
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