Creating Questions from Learning Objectives (1)  E.g. The Learning objective is "Students should be able to use Kirchoff's voltage and current laws to.

Slides:



Advertisements
Similar presentations
Circuits.
Advertisements

Series and Parallel Circuits
A route for the flow of electricity that has elements of both parallel and series circuits, and also multiple batteries that mess with our heads!
Unit 7 Parallel Circuits
Chapter : Current, Resistance and Ohm’s Law.
Physics 1161: Lecture 10 Kirchhoff’s Laws. Kirchhoff’s Rules Kirchhoff’s Junction Rule: – Current going in equals current coming out. Kirchhoff’s Loop.
Kirchhoff’s laws. Kirchhoff’s laws: current law: voltage law: Equations.
EET Survey of Electronics Chapter 14 - Series-parallel circuits.
Y12 Review… Simple circuit…
Electric Circuits A circuit is a path where a current can flow If the flow is to be continuous, the can be no gaps in the path Introduce gaps in the form.
A Falkirk High School presentation Ohm’s Law For each of the questions, click the letter of the correct answer Click to start the test.
Electric Current Electrical current is the flow of electrons. Unlike static electricity, charges are in motion. Two types of Current I. Direct current.
Current, Resistance,Voltage Electric Power & Energy Series, Parallel & Combo Circuits with Ohm’s Law, Combo Circuits with Kirchoff’s Laws Review for Chapters.
INC 112 Basic Circuit Analysis Week 2 Kirchhoff's laws.
Electric Circuits Key Question: Investigation 16C
Parallel Circuits – Chapter 5
KIRCHHOFF’S LAWS & COMBINATIONS OF RESISTORS
Calculating Electricity
Study Guide Exam 1. Closed book/Closed notes Bring a calculator Format – 6 short answer questions 3 questions on material from HW questions related.
Electricity What is it and how does it work?. Some definitions to start with An electrical current is caused by the flow of negatively charged electrons.
The Math for Ohms Law along in DC Circuits
The Parallel Circuit Total Resistance Kirchoff’s Current Law
4.2.5 Parallel Circuits Wiring for Voltage. Definitions parallel circuit – a circuit in which two or more elements are connected so that each has its.
SERIES RESISTORS AND VOLTAGE DIVISION In Fig the two resistors are in series, since the same current i flows in both of them. Applying Ohm’s law.
Chapter 6 Series Circuits.
ELECTRICITY D.C. stands for direct current which flows in one direction only (- to +) A.C.stands for alternating current which changes direction 50 times.
Mr Powell Kirchoffs Laws Physics – Kirchhoff’s laws Conservation of charge and energy in simple d.c. circuits. The relationships between currents,
Limiting Maximum Current of the Power Supply. Which Meter has almost zero resistance? Current meter R i  0  e.g.,  R i 
How to Calculate Total Circuit Current in a Series Circuit ?
Engineering Science EAB_S_127 Electricity Chapter 2.
Regents Physics Parallel Circuits –Ohm’s Law in Parallel Circuits.
Kirchhoff’s laws. Apply Kirchhoff’s first and second laws. Calculate the current and voltage for resistor circuits connected in parallel. Calculate the.
Ohm’s Law Foundations of Technology Ohm’s Law © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™
Ohm’s Law Resistance in Series Circuits
 Electrical circuit: a closed loop where charged particles flow  Electrical current: a flow of charged particles (e - )  Direct current (DC): a flow.
S.MORRIS 2006 Currents CIRCUITS More free powerpoints at
Lab 14A series vs. parallel and short circuits. Set up your circuit board as shown above.
Series & Parallel Circuits
5.2.2 D.C. Circuits Practical circuits Electromotive force and internal resistance Kirchhoff’s laws Series and parallel arrangements Potential divider.
Lecture Name: Dr. Mohammed Elmaleeh Office Location: Building No. D Office Contact Number: ELECTRICAL CIRCUITS (EE 270)
Solving Problems 14.1 & A circuit contains 5-ohm, 3-ohm, and 8-ohm resistors in series. What is the total resistance of the circuit? Rt = R1.
Parallel Circuits Aim: How does a circuit with multiple loops affect voltage, current and resistance?
Parallel Circuits. In parallel circuits the current can take more than one path. We call these separate paths branches. The branch points are known as.
Kirchhoff’s Current Law For a series circuit: In a series circuit there is only one path so the current must be… Kirchhoff’s Current Law For a series.
Determining Equivalent Resistance
Aim: How do we analyze a parallel circuit?
Chapter 14 Resistive AC Circuits.
Ch.22-CURRENT ELECTRICITY
Ohm’s Law.
Limiting Maximum Current of the Power Supply
Kirchoff’s Voltage Law(KVL), first definition:
A B C Which of the circuits shown above are wired in parallel?
Power Circuit By: AAA.
Electric Circuits Part 2: power With Ms. Box.
Circuits Chapter 35.
Ohm’s Law If the current I = 0.2A and the resistance R = 1000 ohms, solve for voltage. If V = 110V and R = ohms, how much current is flowing through.
Ohm’s Law The relationship between voltage, current and resistance is known as Ohm’s Law: V = IR Voltage (V) = Current (I) x Resistance (R) Volts.
Announcement Next Exam will be on the Thursday when we get back from break The EM Exam will be ALL free response Review materials are posted and you will.
G10 Review… Simple circuit…
Electric current is when electrons start to flow around a circuit
Current Directions and
Kirchhoff’s Laws Physics 102: Lecture 06
Physics 1161: Lecture 10 Kirchhoff’s Laws
Day 4: Volts, Amps, Ohms, Series and Parallel
Nodal and Mesh Analysis
Resistance in Series and Parallel
Kirchoff’s laws - iii All the resistors are six ohms and all the
Bell work: You want a circuit with 3 bulbs
Series Circuits.
Series and Parallel Circuit
Presentation transcript:

Creating Questions from Learning Objectives (1)  E.g. The Learning objective is "Students should be able to use Kirchoff's voltage and current laws to analyze resistive circuits"

Creating Questions from Learning Objectives (2) Q1 A circuit is made of three 1.5V cells as shown.. What current, in Amps, will flow from B to A in this circuit? Could just ask for numeric answer Ans = 4.5/90 = 0.05Amps Then Must make sure it is unambiguous how to answer. e.g   0.05 Amps   0.05 A   5.0 * 10E-2 A   mA 30  A C B1.5V

Creating Questions from Learning Objectives (3) For multiple choice, list the answer among some distracters. What would be good distracters?  90/4.5?  90*4.5?  0.5?  -0.05? (watch out for this one!)

Working from a past Exam Question  Clearly question b is ripe for turning into a multiple choice or numeric answer.  What was the point of (the second part) of part a?  There are many permutations from this question

Working from known student mistakes  Let us assume that students regularly make a mistake with their sums when working out resistance in parallel

12 V 100 ohms 200 ohms 100 ohms 300 ohms A B C I1I1 I2I2 I3I3 I4I4 We could also ask formative questions. 1.What is V AC ? 2.What is resistance of upper loop between A and C? 3.What is I 1 ? 4.What is effective resistance between BC? 5.What is effective resistance of lower loop A to C? 6.What is V AC 7.What is V BC ? 8.What is resistance of upper loop B to C? 9.What is I 3 ? (or we might miss 8 on the basis of 1-3 above) We could ask a straight numeric question such as "What is I 1 ?" "What is I 3 ?" These would be summative questions.