1.15 Consider a uniform electric field E = 3 î N/C.
(a) What is the flux of this field through a square of 10 cm on a side whose plane is parallel to the yz plane?
(b) What is the flux through the same square if the normal to its plane makes a 60° angle with the x-axis?
1.15 Consider a uniform electric field E = 3 î N/C.
(a) What is the flux of this field through a square of 10 cm on a side whose plane is parallel to the yz plane?
(b) What is the flux through the same square if the normal to its plane makes a 60° angle with the x-axis?
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1 Answer
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1.15 (a) Electric field intensity, E = 3 î N/C
Magnitude of electric field intensity, =
N/CSide of the square, s = 10 cm = 0.1 m
Area of the square, A = = 0.01
The plane of the square is parallel to the y-z plane, hence the angle between the unit vector normal to the plane and electric field, = 0
Flux ( through the plane is given by the relation, = =
C(b) When the normal to its plane make a 60 angle with x-axis, = 60
. From the equation =we get = C
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Indeed, it is an easy chapter of Class 12 Physics. In this chapter, you will learn about the foundational concepts like Gauss's law and electric fields.
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