electrostatics Flashcards
1
Q
What is the equation for force of electrostatics?
A
F= k *(q1q2/r^2)
2
Q
What are the equations for finding the magnitude of an electric field?
A
E = F/qi (E= electric field, qi = test charge)
E = kq/r^2 (q = source charge magnitude)
3
Q
What is electrostatic potential energy equation?
A
U = W = k(qQ/r)
4
Q
What is electrostatic potential difference (voltage) equation?
A
V = W/q = k(qQ/r)/q = k(Q/r)
5
Q
What is the equation for the electrostatic potential difference of a dipole?
A
V = k(qd/r^2) cos theta = k(p/r^2) cos theta qd = p = dipole moment
6
Q
What is the equation magnitude for the magnitude of an electric dipole?
A
E = 1/ 4* pie * e0 * p/r^3 p= electric dipole,
7
Q
What is the equation for torque exerted on a point in space?
A
torque = qd * E * sin theta
