• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/52

Click to flip

### 52 Cards in this Set

• Front
• Back
 Coulomb's Law F = k*q1*q2/r^2 Lines of a positive force ________, and negative force ___________ go outward, go inward Electric Field -A vector pointing in the direction of the field -units of N/C E = k*q1/r^2 Force on a charge in an electric field: F = E*q The potential Energy (U) of a charge in an electric field: U = E*q*d Electric Potential Energy U = k*q1*q2/r Voltage -The potential for work by an electric field in moving any charge from one point to another -Units = J/C V = Ed V = k*q1/r Equipotential Surfaces -A surface normal to the field that describes a set of points all w/ the same potential Electric Dipole Created by two opposite charges w/ equal magnitude Electric Dipole Moment A vector whose magnitude is the charge q on one of the charges times the distance d between the charges (points in opposite direction to E field, from neg to positive A dipole not perfectly aligned w/ an external electric field will have a potential energy of: U = -pEcos(theta) The electric field inside a uniformly charged conductor is _________ zero Current -Given in amps, or C/s -Flow in the direction of positive charge If an object is made from a homogeneous conductor, the resistance of the object when a voltage is applied uniformly to its ends = R = p*(L/A) p = resistivity of material Voltage Formula V = iR Voltage is analogous to: gh Kirchoff's First Law The amount of current flowing into any node must be the same amount that flows out Node Any intersection of wires Kirchoff's Second Law The voltage around any path in a circuit must sum to zero Battery Adds energy to a circuit by increasing the voltage from one point to another (rated w/ EMF) Capacitor -Temporarily stores energy in a circuit (form of separated charge) Electric Field between parallel plate capacitors: E = (1/K)*(Q/A*eo) eo = permittivity k = 1/(4*pi*eo) Capacitance C = Q/V Formula for Parallel Plate Capacitor: C = K*(A*eo/d) Energy stored in any capacitor: U = (1/2)*Q*V Dielectric Constant (K) Refers to the substance between the plates of a capacitor (must be an insulator) Resistors in Series R(eff) = R1 + R2 + ... Resistors in Parallel 1/R(eff) = 1/R1 + 1/R2 + ... Electrical Power P = i^2*R Power Dissipated The rate at which heat is dissipated in a resistor Max Current in AC circuit i(max) = sqrt(2*i(rms)) rms root mean square. square root of the average of the squares. Capacitance C = Q/V Formula for Parallel Plate Capacitor: C = K*(A*eo/d) The lines of force in a magnetic field point from the ______ to the ________ north to the south Energy stored in any capacitor: U = (1/2)*Q*V What creates a magnetic field? A changing electric field (i.e. from current) Dielectric Constant (K) Refers to the substance between the plates of a capacitor (must be an insulator) Magnetic Field for a long, straight wire: B = (uo*i)/(2*pi*r) Resistors in Series R(eff) = R1 + R2 + ... The force on a charge moving w/ velocity through a magnetic field: F = qvBsin(theta) Resistors in Parallel 1/R(eff) = 1/R1 + 1/R2 + ... Electrical Power P = i^2*R Power Dissipated The rate at which heat is dissipated in a resistor Max Current in AC circuit i(max) = sqrt(2*i(rms)) rms root mean square. square root of the average of the squares. The lines of force in a magnetic field point from the ______ to the ________ north to the south What creates a magnetic field? A changing electric field (i.e. from current) Magnetic Field for a long, straight wire: B = (uo*i)/(2*pi*r) The force on a charge moving w/ velocity through a magnetic field: F = qvBsin(theta) T or F: The force due to a magnetic field does work False. It always acts the centripetal force and can be set equal to mv^2/r The force on a current carrying wire placed in a magnetic field: F = ilBsin(theta)