Define quant......am physics
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<u>The correct option is (D). The strength of electric field depends on the amount of charge that produces the field as well as the distance from the charge. </u>
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Further Explanation:
The electric field intensity at a point is the measure of the force exerted by a charge particle on another charge particle in the particular area of its strength.
The electric field intensity at a distance due to a static charge having charge
is directly proportional to the amount of charge and inversely proportional to the square of the distance between them.
The Electric field intensity due to a charge is given as:
Here, is the electric field intensity,
is the amount of charge and
is the distance of the charge from the point.
The above expression of electric field shows that the electric field intensity at a point depends on the amount of charge as well as the distance of the point from the charge.
<u>Thus, the correct option is (D). The strength of electric field depends on the amount of charge that produces the field as well as the distance from the charge. </u>
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Answer Details:
Grade: Senior school
Subject: Physics
Chapter: Electrostatics
Keywords: Strength, electric field, charge, distance, electric field intensity, magnitude of charge, electrostatic, test charge, kq/r^2.
We can solve the problem by applying Newton's second law, which states that the resultant of the forces acting on an object is equal to the product between its mass and its acceleration:
We should consider two different directions: the direction perpendicular to the inclined plane and the direction parallel to it. Let's write the equations of the forces along the two directions, decomposing the weight of the object (mg):
(parallel direction) (1)
(perpendicular direction) (2)
where
is the angle of the inclined plane, N is the normal reaction of the plane, 
is the frictional force, with 
being the coefficient of friction.
From eq.(2), we find
and if we substitute into eq.(1), we can find the acceleration of the block:
from which
We should consider two different directions: the direction perpendicular to the inclined plane and the direction parallel to it. Let's write the equations of the forces along the two directions, decomposing the weight of the object (mg):
where
From eq.(2), we find
and if we substitute into eq.(1), we can find the acceleration of the block:
from which