These are the two fundamental rules at the base of all electrical phenomena
What is opposites attract and likes repel
100
This is the law described by the formula: F=k(q1 q2)/r^2
What is Coulomb's Law
100
Electric field lines originate at this charge and terminate at this charge or infinity.
What is positive and negative
100
Always look for this quality when solving for the electric field due to a line of charge.
What is symmetry
100
This is the integral from "Get to Stepping - 500" solved.
E=λ/2πεR
200
Objects that have as many electrons as protons
What is neutral
200
This is the value of Coulomb’s constant k
What is 8.99 x 10^9 Nm^2/C^2
200
This is the direction a negatively charged electric force would point if it were between a negative charge on the left and a positive charge on the right.
What is right
200
If the line of charge is circular, let this differentiating variable be the arc length of an element of the distribution. If the line of charge is straight, use this differentiating variable.
What is ds and dx
300
This is the only charge that can move in a solid material
What is negative (electron)
300
This is the force of attraction between two 1 C charges separated by a distance of 0.5 m
What is 3.6 x 10^10 N
300
This equation is the general definition of electric field
What is E=F/q
300
The second step in solving an electric field due to a line of charge problem is to relate the charge of the element to this variable.
What is length of the element
400
The two factors which affect the force between two electric charges
What is amount of charge and distance between charges
400
This is the distance between an electron and proton in the hydrogen atom when the force of attraction is 8.2 x 10-8 N.
What is 5.3 x 10^-11 m
400
This is how the electric field vector lies on the electric field line at any given point in
What is tangent
400
The last step in solving for the electric field due to a line of charge is to replace this variable with its equivalent
What is charge per unit length
500
A solid object is said to be electrically charged if it has lost or gained these particles
What are electrons
500
This is the change in electrical force between a pair of ions when their separation distance is tripled and each charge has been doubled.
What is 4/9
500
This is the magnitude of the electric field when a 10 C charge experiences a 30 N electrical force.
What is 3 N/C
500
This is the integral set up for a thin nonconducting rod that is carrying a uniform linear charge density λ and is bent into a semicircle of radius R.