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 10
A charge of +5 μC is placed in an electric field and experiences a force of 0.025 N. What is the magnitude of the electric field?
A negative point charge is placed in a uniform electric field. In which direction will the force on the charge act relative to the field?
A test charge of +1 μC experiences a force of 0.02 N at a point in space. What is the electric field at that point?
Calculate the magnitude of the electric field 0.2 m away from a point charge of +3 × 10-6 C. (Take k = 9 × 109 N·m2/C2)
Describe the pattern of electric field lines between two parallel plates, one positively charged and one negatively charged.
Describe what happens to the electric field strength as you move farther from a point charge.
Explain why electric field lines never cross each other.
If a positive test charge is placed in the electric field of a negative charge, in which direction will it move?
If the distance between two point charges is doubled, what happens to the electric field at a point midway between them?
If the electric field at a point is 500 N/C, what force will a charge of 2 μC experience at that point?
If the electric field at a point is zero, what can you say about the net force on a test charge placed at that point?
If two like charges are placed near each other, how do their electric field lines interact?
State Coulomb's law and explain its relation to the electric field.
What is an electric field?
