1 Mid-term review Charges and current. Coulomb’s Law. Electric field, flux, potential and Gauss’s Law. Passive circuit components.  Resistance and resistor,

Slides:

Advertisements

Similar presentations

Electrostatics, Circuits, and Magnetism 4/29/2008

Advertisements

Physics 1402: Lecture 21 Today’s Agenda Announcements: –Induction, RL circuits Homework 06: due next MondayHomework 06: due next Monday Induction / AC.

DC circuits Physics Department, New York City College of Technology.

The Magnetic Field The force on a charge q moving with a velocity The magnitude of the force.

The Magnetic Field The force on a charge q moving with a velocity The magnitude of the force.

Lecture 31: MON 10 NOV Review Session : Midterm 3 Physics 2113 Jonathan Dowling.

Lecture 31: MON 30 MAR Review Session : Midterm 3 Physics 2113 Jonathan Dowling.

Biot-Savart Law The Field Produced by a Straight Wire.

Self-inductance and inductors(sec. 30.2) Magnetic field energy(sec. 30.3) RL circuit(sec. 30.4) LC circuit (sec. 30.5) RLC series circuit (sec. 30.6) Inductance.

Lecture B Electrical circuits, power supplies and passive circuit elements.

Ch. 30 Inductance AP Physics. Mutual Inductance According to Faraday’s law, an emf is induced in a stationary circuit whenever the magnetic flux varies.

Physics 2102 Inductors, RL circuits, LC circuits Physics 2102 Gabriela González.

Physics 2102 Lecture 19 Ch 30: Inductors and RL Circuits Physics 2102 Jonathan Dowling Nikolai Tesla.

-Self Inductance -Inductance of a Solenoid -RL Circuit -Energy Stored in an Inductor AP Physics C Mrs. Coyle.

Self-Inductance When the switch is closed, the current does not immediately reach its maximum value Faraday’s law can be used to describe the effect.

Current, Resistance, and Simple Circuits.  A capacitor is a device used to store electrical energy.  There are two different ways to arrange circuit.

1308 E&M Direct current, resistance, and circuits 1.At 20.0°C, a mainly silicon resistor has a resistance of 585 Ω, and a tungsten resistor has a resistance.

Chapter 24 Inductance and

Copyright © 2009 Pearson Education, Inc. Chapter 33 Inductance, Electromagnetic Oscillations, and AC Circuits.

PY212 Electricity and Magnetism I. Electrostatics.

Copyright © 2007 Pearson Education, Inc. publishing as Addison-Wesley PowerPoint Lectures for College Physics, Eighth Edition Hugh D. Young and Robert.

Lecture 18-1 Ways to Change Magnetic Flux Changing the magnitude of the field within a conducting loop (or coil). Changing the area of the loop (or coil)

Gneral Physics II, Syllibus, By/ T.A. Eleyan1 General Physics II Instructor Tamer A. Eleyan 2008/2009.

Chapter 32 Inductance L and the stored magnetic energy RL and LC circuits RLC circuit.

B due to a moving point charge where  0 = 4  x10 -7 T.m/A Biot-Savart law: B due to a current element B on the axis of a current loop B inside a solenoid.

 Chapter 15 – Electric Forces and Fields  Chapter 16 – Electrical Energy and Capacitance  Chapter 17 – Current and Resistance  Chapter 18 – Direct.

Exam review Inductors, EM oscillations

AP Physics C III.E – Electromagnetism. Motional EMF. Consider a conducting wire moving through a magnetic field.

Lecture 17 Problems & Solution(1). [1] What is the magnitude of the current flowing in the circuit shown in Fig. 2? [2] A copper wire has resistance 5.

General electric flux definition The field is not uniform The surface is not perpendicular to the field If the surface is made up of a mosaic of N little.

1 Electromagnetic Induction We introduced motional emf and Faraday’s Law through these two examples: Today we will the discussion about Faraday’s Law of.

AP Physics C Electric Circuits III.C. III.C.1 Current, Resistance and Power.

Lecture 27: FRI 20 MAR Inductors & Inductance Ch.30.7–9 Inductors & Inductance Physics 2102 Jonathan Dowling Nikolai Tesla.

Current Electric Current (I)

Self Inductance. A variable power supply is connected to a loop. The current in the loop creates a magnetic field. What happens when the power supply.

Electricity and magnetism

Self Inductance Consider a solenoid with n turns/m, length l, current i, and cross sectional area A. l A There is a magnetic field inside the solenoid,

INDUCTANCE. When the current in a loop if wire changes with time, an emf is induced in the loop according to Faraday’s law. The self- induced emf is Ɛ.

Current of Electricity Electric Current Potential Difference Resistance and Resistivity Electromotive Force.

Faraday’s Law and Inductance. Faraday’s Law A moving magnet can exert a force on a stationary charge. Faraday’s Law of Induction Induced emf is directly.

Exam 2: Review Session CH 24–28

Announcements  FINAL EXAM: PHYS (10 am class): Monday, May 10-11:50 am PHYS (11 am class): Wednesday, May 10-11:50 am  NO New.

9. Inductance M is a geometrical factor! L is a geometrical factor!

Exam 2: Review Session CH 25–28

Electrostatics Charge  force: Force  electric field: Force  charge:

Chapter 30 Lecture 31: Faraday’s Law and Induction: II HW 10 (problems): 29.15, 29.36, 29.48, 29.54, 30.14, 30.34, 30.42, Due Friday, Dec. 4.

Physics 2102 Exam 2: Review Session Chapters / HW04-06 Physics 2102 Jonathan Dowling Some links on exam stress:

Electric Current and Circuits. Current Affairs... Defining Current Current Density and Conductivity Drift Velocity - an application of ideas.

1 Reviews on Electricity and Magnetism Field Charge generates electric filed Current generates magnetic field (from Coulumb’s Law) Biot-Savart’s Law Analytically.

Lectures 7 to 10 The Electric Current and the resistance Electric current and Ohm’s law The Electromotive Force and Internal Resistance Electrical energy.

DR. A. O. ADEWALE Course Outline: Electrostatics, potential and capacitance, dielectrics, production and measurement of static electricity. Current, Ohm’s.

Self Inductance Consider a solenoid L, connect it to a battery Area A, length  l, N turns What happens as you close the switch? Lenz’s law – loop resists.

AP Physics C III.E – Electromagnetism. Motional EMF. Consider a conducting wire moving through a magnetic field.

Problem 4 A metal wire of mass m can slide without friction on two parallel, horizontal, conducting rails. The rails are connected by a generator which.

CURRENT, RESISTANCE, AND ELECTROMOTIVE FORCE Chapter 4.

1 Mid-term review Charges and current. Coulomb’s Law. Electric field, flux, potential and Gauss’s Law. Passive circuit components.  Resistance and resistor,

Chapters 17 through 23 Midterm Review. Midterm Exam ~ 1 hr, in class 15 questions 6 calculation questions One from each chapter with Ch. 17 and 18 combine.

Solar Magnetic Fields. Capacitors in Circuits Charge takes time to move through wire  V is felt at the speed of light, however Change in potential across.

Electrical circuits, power supplies and passive circuit elements

Inductance and Capacitance Response of First Order RL and RC

Exam Information In class next Friday, ~1 hr.

Electrical circuits, power supplies and passive circuit elements

Eddy Current A current induced in a solid conducting object, due to motion of the object in an external magnetic field. The presence of eddy current in.

University Physics Final Exam Overview.

ELL100: INTRODUCTION TO ELECTRICAL ENG.

9. Inductance M is a geometrical factor! L is a geometrical factor!

Chapters 18 & 19 What is the definition of electric potential?

Lab: AC Circuits Integrated Science II.

Lecture 2 Electrical and Electronics Circuits. After you study, and apply ideas in this Lecture, you will: Understand differences among resistance, capacitance,

Presentation transcript:

1 Mid-term review Charges and current. Coulomb’s Law. Electric field, flux, potential and Gauss’s Law. Passive circuit components.  Resistance and resistor, Ohm’s Law. Resistance as a function of temperature. Power dissipated through a resistor.  Capacitance and capacitor. Simple RC circuit, charge and discharge and the time constant, and energy and energy density (PE E and u E ) stored in a capacitor.  Self-inductance and inductor. Simple RL circuit, “charge” and “discharge” and the time constant, and energy and energy density (PE B and u B ) stored in an inductor. Power and battery model (emf + internal resistance). Circuit analysis, simple connections in series and in parallel and the Kirchhoff’s rules. Current generates magnet field: Biot-Savart Law. Magnet field flux and Ampere’s Law. Lorentz force law. Motion emf, Faraday’s Law of induction and Lentz Law. Mutual and self induction.

2 Mid-term review 1.A circle made of conductor with radius R carries charge Q. A particle of mass m carrying charge -q is brought in along the center line from far away to a distance d away from the circle. What is the velocity and acceleration of this particle at this point? Y X Z Q R -q, m d

3 Mid-term review

4

5 2.A 3 meter tungsten wire with a diameter of 20 μm is stretched in a multi-wire chamber and is connected to a positive high voltage power supply which provides a voltage V to the wire with respect to a far away grounded cage. The capacitance of this wire is 30 pF ( 1pF = F). To get an electric filed strength at middle of the wire and 1 mm away from the wire surface to be V/m, what is the supplied high voltage V? One can treat the wire as infinitely long when calculating the electric field in the middle of the wire. V r E

6 Mid-term review 3.In the circuit shown here, at t = 0, the switch is closed. The resistor values are marked in the circuit. The capacitors all have C = 2μF. The battery has emf = 12V, and an internal resistance of 10Ω. (1kΩ=1000Ω, 1MΩ=1000kΩ). (a)Write the current through point B as a function of time. (b) What is potential at point A when t=3 second?

7 Mid-term review