Lab 04 - Ohm's Law and Resistance (1)

By doing the " Coloumbs Law Lab " how do you calculate the electric force on suspended balloon and the charge on each balloon? Can you give an sample calculation

An aluminum wire 5m long and 2mm diameter is connected in parallel with a copper wire 3m long. The total current is 4 A and that in the aluminum wire is 2.5 A. Find the diametre of  the copper wire. The resistivity of copper wire being 1.7 micro ohm meter and that of aluminum taken Al 2.6 micro ohm meter

!.With the aid of a diagram explain bourdon gauge and how it works !!. Explain the principle of operation of the electrical resistance strain gauge

Create a circuit diagram using the instructions given then find its Requivalent.

Basic Electrical Engineering Chapter 8. Battery and Cells LESSON TITLECells and Battery

A linear resistance potentiometer is 50 mm long and is uniformly wound with wire having a resistance of 10000 ohm. Under normal conditions, the slider is at the centre of the potentiometer. Find the linear displacement when the resistance of the potentiometer as measured by a Wheatstone bridge for two cases is (1) 3520 ohm (2) 8250 ohm .

3 resistors are expected to be 10 ohm according to theory but actual values are dlfferent this is what I observed. The question I posted as a photo. Also the tolerance percentage for this resistors are 5%, if my tolerance is not specified +/- 5% what might be the reasons for the disprepancy? ..

In solving a network, what rule must you observe when writing KCL equations? Why?

The circuit below(left) displays a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the circuit below(right), the terminal voltage of each of the battery-resistor combination is VT = 1.5 volts.  Find the voltage across R1 & voltage of the battery. Find the percentage of voltage loss of the battery due to the internal resistance R1.

hi i saw a question on the book  ( Fundamentals of Electric Circuits 5th Edition, Charles K. Alexander )  Page : 743 but i can't find the way and the steps that he solve it and im curious how he slove it , i upoladed an image ,  can you help me . thank you.

Question 3: A very simple model for the distribution of clectricity to a typical home is shown in the figure below. Some of components labeled a, b, c, d, c, f, g and h represent the electrical source to the home, some represent the wires that carry the electrical current from the source to the devices in the home requiring electrical power, some represent lamps, televisions, hair dryers and other devices that require power. Assume you are an engineer in charge of a project and one of your subordinate engineers reports that the interconnection in the figure does not pass the power check. The data for the interconnection are given in the table below. Is the subordinate correer? Explain your answer. If the subordinate is correct, find the error in the data. Explain your answer clearly. Based on your answer identify that which label(s) used for the electrical source, wires or other devices. a e h

In the figure the ideal batteries have emfs ɛ1 = 20.4 V, ɛ2 = 9.05 V, and ɛ3 = 5.40 V, and the resistances are each 2.40 Q. What are the (a) size and (b) direction (left or right) of current i,? (c) Does battery 1 supply or absorb energy, and (d) what is its power? (e) Does battery 2 supply or absorb energy, and (f) what is its power? (g) Does battery 3 supply or absorb energy, and (h) what is its power? (a) Number i Units (b) (c) (d) Number i Units (e) (f) Number i Units (g) (h) Number i Units

Look at the images shown.  Why can we measure resistance with a pencil drawn on a piece of paper? What is the component/material that is on the pencil that gives a high resistance? With the values given on the images, what are the corresponding color codes (indicate tolerance using a 4-band color code scheme)? If the first value is connected in series with the other value, what is the total resistance? If it’s parallel what is the total resistance? 0.449 mega ohms 102.2 kilo ohms

3. The figure on the left below shows a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the figure on the right below, the terminal voltage of each of the battery-resistor combination is Vr = 1.5 volts. Find the following: a. The current passing through R5. b. The currents passing through R1 and R3 C. The voltage across R1. d. The voltage of the battery EMF. e. The percentage of voltage loss ot the battery due to the internal resistance R1. The power dissipated by the internal resistance R1. g. The power dissipated by R5 if R1 = R2 = R3 = R4 = 0. h. The percentage of power dissipation loss due to the four resistors R1, R2, R3, and R4 f. R1 R3 S10 R1 U1 1.500 EMF EMF R5 100 V1 R2 $10 EMF R4 EMF EMF

can you explain how to figure out #8 book - principles of electric circuits 10th edition

The figure4 shows the relation between resistance and temperature for the thermistor.                                                                                                 Figure 4 What is the value of resistance approximately at 30°C? What happens to the resistance value as the temperature increases? Is it PTC or NTC thermistor?         Justify your answer.

The circuit below(left) displays a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the circuit below(right), the terminal voltage of each of the battery-resistor combination is VT = 1.5 volts.  Find the voltage across R1 & voltage of the battery.

explain and show every step in the solution

b) Describe the traces you would see on an oscilloscope monitoring voltage changes across a resistance which has: - AC flowing through it - DC flowing through it You should include diagrams to support your descriptions for each trace.

Two point charges (C₁ and C₂) are fixed as shown in the setup below. Now consider a third test charge with charge -q that you can place anywhere you want in regions A, B, C, or D. In which region could you place the test charge so that the net force on the test charge is zero? A. Region A B. Region B C. Region C A-2q B C D D. Region D C13 C₂

A resistance of 10 ohms and C=0.1F is connected in series with a 12V battery. Find the charge at any time and the charge current 0.4 seconds after switch is closed.

C) The figure4 shows the relation between resistance and temperature for the thermistor.   What is the value of resistance approximately at 70°C? What happens to the resistance value as the temperature increases?                                          3.  Is it PTC or NTC thermistor? Justify your answer.

docs.google.com 8 1. What are the values of the resistances bellow according to these colors? a. Orange – blue - green - gold b. Violet – yellow – violet – silver c. Yellow – gray - green - orange - gold d. Blue - brown- red- orange - gold – red 1 Add file 2. How can you connect Avometer to measure current, voltage and resistance? * Your answer 3- how can you examine the capacitor and diode if they work or not ? *

How can you convert a galvanometer into an ammeter and a voltmeter? A PMMC galvanometer of 69 resistance reads up to 60 mA. Determine the value of the resistance (i) when connected in parallel to enable the instrument to read up to 1.20 A and (ii) when connected in series to enable it to read 12 V.

A DC voltmeter has a sensitivity of 1000 ohm/volt. When it measures half of full scale what is the current through voltmeter? A.100 mA B.1 mA C.0.5 mA D. 50 mA

Determine the nodes/junctions, Current (I), Loops, Voltage drop on each Resistor (R), and Power (P) on each Resistor (R) with the following given and illustration: Use the following given for batteries and resistors (color bands for your value of resistors, use the lower limit).  R1 = red red black goldR2 = orange green black silverR3 = white orange black goldR4 = green violet brown goldR5 = violet red black silverR6 = yellow green black silverR7 = brown black black gold V1 (lower left) = 100VV2 (top center) = 150VV3 (lower right) = 200V

Let's say we have a 0.22 μm(micrometer) think Cuwire in a 65 nanometer process. Resistivity of theCu is 2.2 μΩ⋅cm(micro-ohm'centimeter). a) Compute the sheet resistance of the wire