a) For the trace, determine

Slides:

Advertisements

Similar presentations

Which of the two cases shown has the smaller equivalent resistance between points a and b? Q Case #1 2. Case #2 3. the equivalent resistance is.

Advertisements

Ohm’s Law Objective: TSW understand the concepts of Voltage, Current, and Resistance by developing and applying Ohm’s Law.

Capacitors and/or TV (not Emf). 1. An empty capacitor does not resist the flow of current, and thus acts like a wire. 2. A capacitor that is full of charge.

Worksheet: Circuits and Ohm’s Law

Dr. Jie ZouPHY Chapter 28 Direct Current Circuits.

II. Electric current 1. Definition Units: [ I ] = 1A = 1 C/s Conventional current Electron flow Example: electrons passed through the electric conductor.

Additional Questions (Direct Current Circuits)

Circuits Series and Parallel. Series Circuits Example: A 6.00 Ω resistor and a 3.00 Ω resistor are connected in series with a 12.0 V battery. Determine.

Announcements  Homework for tomorrow… Ch. 31: CQ 6, Probs. 8, 11 & : 1/ : a) (10 A)e -t/(2.0s) b) I(t = 0) = 10 Ac) plot of exponential.

II. Electric current 1. Definition Units: [ I ] = 1A = 1 C/s Conventional current Electron flow Example: electrons passed through the electric conductor.

Unit 3 Day 1: Voltage, Current, Resistance & Ohm’s Law Batteries Electric Current Conventional Current Resistance Resistors Energy Dissipated in a Resistor.

Chapter 20 Pretest Circuits. 1. If the batteries in a portable CD player provide a terminal voltage of 12 V, what is the potential difference across.

MHS Physics Department AP Unit III C 2 Steady state direct current circuits with batteries and resistors only.

The “Live Action” Physics Review Game Topic: Circuits.

Measurement of internal resistance. 1. Connect up circuit shown opposite. 2. Measure the terminal pd (V) with the voltmeter 3. Measure the current drawn.

Do Now What work is required to move 7 coulombs of charge through a potential difference of 3 volts?

Electrical Resistance and Ohm’s Law Electric circuits are used to convert electrical energy into some other form of energy we need.

Physics Direct Current (DC) Circuits 28.1 EMF and Voltage 28.2 Resistors in Series and Parallel 28.3 Kirchhoff’s Rules 28.4 RC Circuit 28.5 Ammeters.

Short circuiting a battery demo… Dangerous ? High current?

Solving for current, resistance and voltage in circuits.

Fall 2008 Physics 121 Practice Problem Solutions 08A: DC Circuits Contents: 121P08 - 4P, 5P, 9P, 10P, 13P, 14P, 15P, 21P, 23P, 26P, 31P, 33P, Kirchoff’s.

Electrical circuits. Intensity (I): Number of charges that flow past a given point every second. Measured in Amperes (A). Wires that carry the electrical.

Electric Circuits.

Regents Physics Chapters 17/18 Circuits  Series Circuits.

describes the relationship between current, voltage, and resistance greater the voltage across a device with resistance, the greater the current through.

Unfortunate book names:. A circuit must contain a source of potential difference, and a path for the flow of charge. It will probably also contain.

Series Series circuits Current in series circuits Voltage in series circuits.

Internal Resistance.

Emf Electric Power. emf emf: voltage generated by a source (e.g. voltage value labeled on a battery) terminal voltage: the actual potential difference.

Circuit Basics and Ohms Law. Types of Circuits There are two basic types of circuits SeriesParallel.

Physics 212 Lecture 9, Slide 1 Physics 212 Lecture 9 Today's Concept: Electric Current Ohm’s Law & resistors Resistors in circuits Power in circuits.

CH Model of a real battery A real battery can be modeled as an ideal battery (i.e. voltage source) and an internal resistance r. The voltage across.

CURRENT AND RESISTANCE LECTURE 8 DR. LOBNA MOHAMED ABOU EL-MAGD.

Emf and Internal Resistance To do Work in groups of 4 or 5 to carry out Activity 2 – Internal Resistance. Internal Resistance V In theory… V = 12 V In.

I Example: A 12 V battery with 2  internal resistance is connected to a 4  resistor. Calculate (a) the rate at which chemical energy is converted to.

Physics 12 Mr. Jean April 10 th, The plan: Video clip of the day Power Series Circuits Resistance in Series Application of Ohm’s Law.

The Series Circuit Summary 1. The sum of the _____________or voltage equals the potential rise of the source. 2. The current is ______________ everywhere.

Example 4.10 Finding the Thevenin equivalent of a circuit with a dependent source.

EKT101 Electric Circuit Theory

Higher Electricity.

Higher Electricity.

II. Electric current 1. Definition a) Conventional current Electron

Fundamentals of Circuits

Charge, potential difference, energy and current

October 2, 2017 Ohm’s Law.

Resistive Circuits Resistors in series Resistors in parallel

Example: A 12 V battery with 2  internal resistance is connected to a 4  resistor. Calculate (a) the rate at which chemical energy is converted to electrical.

Electric Circuits & Problem Solving!

Resistive Circuits Resistors in series Resistors in parallel

E.M.F and Internal Resistance

Current Electricity & Circuits W. Sautter 2007.

The current through the resistors is 300mA.

Voltage, Current, Resistance & Ohm’s Law

IB Physics SL Y2 Friday, September 19, 2014

Series Circuit.

Electric Circuits IB Physics SL Y2 Friday, September 19, 2014

Ohm’s Law and Circuit Basics

Electric Circuits AP Physics B.

Series Parallel Circuits Notes Homework: Page 619 Q 1-4 Pg 623 Q 11

Charge, potential difference, energy and current

Basic Circuits.

Parallel Circuits.

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

Example Example 1: An electric lamp is rated 110 W, 200 V. When the lamp is operated at its rated power and voltage, calculate a) the current flowing through.

Electrical Circuit Symbols

Chapter 28 Problems 2,6,8,9,15,20,21,36,40.

Example 28.1 Terminal Voltage of a Battery

Electromotive Force Elliott.

Presentation transcript:

a) For the trace, determine (i) the maximum positive value of potential difference, (ii) the maximum negative value of potential difference, the frequency of the signal. (b) The trace shows the variation in the potential difference across a 100 W resistor. Calculate the energy dissipated in the resistor (i) for the first 1.00 ms,

3. (a) Show that the unit of resistivity is W m.

4. In the circuit shown, the battery has negligible internal resistance a) Calculate the current in the ammeter when the terminals X and Y are short-circuited i.e. connected together, (b) The terminals X and Y are connected to a 30 Ohm resistor work out the total current in the circuit