All Flashcards
Steps to determine net electrostatic force on a charge due to multiple charges?
- Calculate the electrostatic force between the charge and each of the other charges using Coulomb's Law. 2. Determine the direction of each force (attractive or repulsive). 3. Resolve each force into x and y components. 4. Calculate the net force in the x and y directions by summing the components. 5. Find the magnitude and direction of the net force using vector addition.
Steps for drawing electric field lines?
- Field lines originate from positive charges and terminate at negative charges. 2. Field lines are always perpendicular to the surface of a charged conductor. 3. Field lines never cross each other. 4. The density of field lines indicates the strength of the field.
What is the effect of increasing the distance between two charges on the electrostatic force?
The electrostatic force decreases, inversely proportional to the square of the distance.
What is the effect of placing a positive charge in an electric field?
The positive charge experiences a force in the direction of the electric field.
What is the effect of placing a negative charge in an electric field?
The negative charge experiences a force opposite to the direction of the electric field.
What happens to the electric field strength as the density of electric field lines increases?
The electric field strength increases.
What is the effect of increasing the magnitude of either charge in Coulomb's Law?
The magnitude of the electrostatic force increases proportionally.
Compare and contrast test charge 'q' and source charge 'Q'.
Test charge 'q': Used to measure the electric field; its own field is negligible. Source charge 'Q': Creates the electric field.
Compare the electric field strength () due to a point charge and between parallel plates.
Point Charge: varies with distance (). Parallel Plates: is uniform between the plates.