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What are the key differences between scalar and vector quantities?
Scalar: Magnitude only | Vector: Magnitude and direction
How do vector fields and scalar fields differ in representation?
Vector Fields: Arrows (magnitude and direction) | Scalar Fields: Contour lines or color gradients (magnitude only)
Compare electric field and electric potential.
Electric Field: Vector, force per unit charge | Electric Potential: Scalar, potential energy per unit charge
Differentiate between electric field lines and equipotential lines.
Electric Field Lines: Show direction of force on positive charge | Equipotential Lines: Show lines of constant potential, perpendicular to field lines
What is the difference between distance and displacement?
Distance: Scalar, total length traveled | Displacement: Vector, change in position
What is the effect of increasing the density of electric field lines?
The electric field strength increases.
What happens when moving along an equipotential line?
No work is done.
What is the effect of placing a positive charge in an electric field?
The charge experiences a force in the direction of the field.
What is the effect of placing a negative charge in an electric field?
The charge experiences a force opposite to the direction of the field.
What happens to electric potential as you move closer to a positive charge?
Electric potential increases.
What is a scalar quantity?
A quantity described by magnitude alone.
What is a vector quantity?
A quantity described by both magnitude and direction.
What is a vector field?
A map showing how a vector quantity changes across space.
What is a scalar field?
A map that shows how a scalar quantity changes across space.
What are equipotential lines?
Lines of constant electric potential.