Electric Field and Field Lines
Physics ⇒ Electricity and Magnetism
Electric Field and Field Lines starts at 9 and continues till grade 12.
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See sample questions for grade 9
A point charge of +1 C is placed at the origin. What is the direction of the electric field at a point on the positive x-axis?
A point charge of +5 C is placed at a point. What is the direction of the electric field at a point 1 m away from the charge?
A positive test charge is placed in an electric field. In which direction will it move?
Describe the pattern of electric field lines between two unlike charges placed close to each other.
Describe what happens to electric field lines when two like charges are placed near each other.
Describe what happens to the electric field lines near a sharp point on a charged conductor.
A point charge of +1 C is placed at the origin. What is the direction of the electric field at a point on the positive x-axis?
A point charge of +5 C is placed at a point. What is the direction of the electric field at a point 1 m away from the charge?
Which of the following best describes electric field lines? (1) They start from negative charges and end at positive charges. (2) They start from positive charges and end at negative charges. (3) They form closed loops. (4) They are always straight lines.
Which of the following best describes the electric field inside a hollow, charged, conducting sphere? (1) Zero everywhere inside (2) Maximum at the center (3) Increases with distance from the center (4) Same as outside the sphere
Which of the following best represents the electric field lines around a single positive point charge? (1) Radially inward (2) Radially outward (3) Circular (4) Parallel lines
Which of the following is a correct statement about electric field lines? (1) They can start and end on the same charge. (2) They always start on negative charges. (3) They never form closed loops. (4) They can cross each other.
Fill in the blank: The electric field due to a point charge decreases with the _______ of the distance from the charge.
Fill in the blank: The electric field is a _______ quantity, meaning it has both magnitude and direction.
Fill in the blank: The force (F) experienced by a charge (q) in an electric field (E) is given by F = _______.
The direction of the electric field at a point is defined as the direction of the force on a _______ test charge placed at that point.
True or False: Electric field lines can begin or end in empty space.
True or False: Electric field lines never cross each other.
True or False: The direction of electric field lines is always away from positive charges and towards negative charges.
True or False: The electric field at the surface of a charged conductor is always tangent to the surface.
