Phys 0175 study guide
Phys 0175 study guide Phys 0175
Popular in Phys 0175
Popular in Physics 2
This 4 page Study Guide was uploaded by Angela Chang on Tuesday February 24, 2015. The Study Guide belongs to Phys 0175 at University of Pittsburgh taught by Matteo Broccio in Spring2015. Since its upload, it has received 152 views. For similar materials see Phys 0175 in Physics 2 at University of Pittsburgh.
Reviews for Phys 0175 study guide
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 02/24/15
Phys 0970 Exam 2 Study Guide Lectures 10 20 Lecture 10 Feb 28 Work and potential energy Overcome repulsion What is the point of O U How does potential energy change with respect to direction of electric eld Positive charge Going with the Electric eldljpositive W deltaU decreasesnegative WdetaU Going vs Elect Fieldl W negative Delta U positiveincreases Since Elect Field points toward negative q Moving awayagainstl toward same charge unfavorable Negative charge Going with Elect Fied W detaUU increases Going vs negative chargesame repel Lecture 11 What is the algorithm for total electric potential energy Ie Making up for double countingquot Can also take 12 Assemble charges How much U is there in a single charge U is mutual interaction AloneO Application of conservation of energy Finding speed Electric force conservative Potential Independent of test q Potential increases against the eld Lecture 12 Potential on line of charge Coordinate system GradeBuddy Integrate Linear charge density lambda Equipotential surfaces Electric eld is the 1potential gradient Partial derivatives Lecture 13 Relation between charge density and radius Between equipotential surfaces Lecture 14 What is capacitance Only depends on geometrynot on charge The greater the capacitance the lower the potential the less work needed Energy density Positive charges ow from higher to lower V Technically e moving Plate is initially neutral Induced by batteryemf that causes potential difference Lecture 15 What is special about plates in H ParV equipotential Charges passing through vary depending on C CeqC1C2u Can nd charge ratioif two parallel in series to another capacitor plate with known charge or capacitance and voltage In series Same charge passing through Potential depends on capacitance Ceqreciprocal of sum of reciprocals Cylindrical and spherical capacitors Integrating potential with dot productEd ddr because integrating from outside in while electric eld is pointing out GradeBuddy Dielectric materials Effect on Elec Field Decreases due to induced dipole Integrate with gauss law for dielectric Use ux Lecture 16 Two dielectrics if equal areas Mean of dielectric constant Electric Currentscalar Also higher to lower VScaar Drift speed caused by presence of an electric eld lcurrent density ux integral for current density Resistance and resistivity Relation with area length Lecture 17 Current density Direction depends on sign of charge If same dir as drift velocity Can only take current density out of integral if constant Can vary with distance ie radius Ohmic materials Only conductorslinear VRi Lecture 18 Resistors in H Reqreciprocal of sum of reciprocals Constant V Resistors in series Reqsum of R s Constant qconstant i Power input to circuit Power dissipated by resistor GradeBuddy Lecture 19 amp 20 Closed circuit loop rue sumO Conservation of energypotentialvoltage Junction rule Conservation of chargecurrent Branching Must compare voltages of batteries to determine direction If multiple emf and not given choose direction Negativelj ip current
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'