Question
The figure shows electric potential V as a function of
. Rank the four regions according to the magnitude of
-component of the electric field E within them, greatest first
![](data:image/png;base64,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)
The correct answer is: ![E subscript 2 end subscript greater than E subscript 4 end subscript greater than E subscript 1 end subscript equals E subscript 3 end subscript](data:image/png;base64,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)
Electric field
![E equals negative fraction numerator d V over denominator d x end fraction](data:image/png;base64,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)
For I region,
=constant
![](https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/generalfeedback/899071/1/938277/Picture2.png)
![therefore blank fraction numerator d V subscript 1 end subscript over denominator d x end fraction equals 0 blank](data:image/png;base64,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)
![therefore blank E subscript 1 end subscript equals 0 blank](data:image/png;base64,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)
For II region,
![V subscript 2 end subscript equals plus v e equals plus f open parentheses x close parentheses](data:image/png;base64,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)
![therefore E subscript 2 end subscript equals negative fraction numerator d V subscript 2 end subscript over denominator d x end fraction equals negative v e](data:image/png;base64,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)
For III region.
=constant
![therefore blank fraction numerator d V subscript 3 end subscript over denominator d x end fraction equals 0 blank](data:image/png;base64,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)
![therefore blank E subscript 3 end subscript equals 0 blank](data:image/png;base64,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)
For IV region, ![V subscript 1 end subscript equals negative f open parentheses x close parentheses](data:image/png;base64,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)
![therefore blank E subscript 4 end subscript equals negative fraction numerator d V subscript 4 end subscript over denominator d x end fraction equals plus v e](data:image/png;base64,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)
From these values, we have
![E subscript 2 end subscript greater than E subscript 4 end subscript greater than E subscript 1 end subscript equals E subscript 3 end subscript](data:image/png;base64,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)
Related Questions to study
The general solution of the equation
is
The general solution of the equation
is
Solution of
is given by
Solution of
is given by
Equation of the curve passing through (3, 9) which satisfies the differential equation
is
Equation of the curve passing through (3, 9) which satisfies the differential equation
is
If
and f(1) = 2, then f(3) =
If
and f(1) = 2, then f(3) =
The degree and order of the differential equation of all tangent lines to the parabola x2 = 4y is:
The degree and order of the differential equation of all tangent lines to the parabola x2 = 4y is:
The differential equation of all non-horizontal lines in a plane is :
The differential equation of all non-horizontal lines in a plane is :
The differential equation of all non-vertical lines in a plane is :
The differential equation of all non-vertical lines in a plane is :
The differential equation of all conics with the coordinate axes, is of order
The differential equation of all conics with the coordinate axes, is of order
If the algebraic sum of distances of points (2, 1) (3, 2) and (-4, 7) from the line y = mx + c is zero, then this line will always pass through a fixed point whose coordinate is
If the algebraic sum of distances of points (2, 1) (3, 2) and (-4, 7) from the line y = mx + c is zero, then this line will always pass through a fixed point whose coordinate is