I need a clear step by step answer please :) A student conducted an experiment to measure the electrical resistivity of a metallic wire (39mm long, 3.7 mm in diameter). Using the four-point method, the student passed a current of 6.6mA in the wire and was able to measure a voltage drop of 2.3x107 V between the two ends ofthe wire. What is the electrical resistivity of the wire (in Qm)?a. 5.72e-10b. 9.61e-6c. 9.61e-9d. 9.61e-12e. 2.60e-12Clear my choice

Given data L = 39 mm = 0.039 m d = 3.7 mm = 0.0037 m V = 2.3 x 10^-7 I = 6.6 mA = 0 0066 A Find…

A student conducted an experiment to measure the electrical resistivity of a metallic wire (39 mm long, 3.7 mm in diameter). Using the four-point method, the student passed a current of 6. mA in the wire and was able to measure a voltage drop of 2.3x107 V between the two ends of the wire. What is the electrical resistivity of the wire (in Q.m)? a. 5.72e-10 b. 9.61e-6 c. 9.61e-9 d. 9.61e-12 e. 2.60e-12 Clear my choice

A student conducted an experiment to measure the electrical resistivity of a metallic wire (39 mm long, 3.7 mm in diameter). Using the four-point method, the student passed a current of 6. mA in the wire and was able to measure a voltage drop of 2.3x107 V between the two ends of the wire. What is the electrical resistivity of the wire (in Q.m)? a. 5.72e-10 b. 9.61e-6 c. 9.61e-9 d. 9.61e-12 e. 2.60e-12 Clear my choice

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.5P: To determine the thermal conductivity of a structural material, a large 15-cm-thick slab of the...

See similar textbooks

Similar questions

Question 2 Study the table below and answer the questions that follow. Coercivity (kA/m) BH max (kJ/m³) Material Curie temperature (°C) A 19.90 8 887 В 0.08 0.04 771 C 1 500 175 723 238.85 28 429 2.2. a) On the same set of axes draw and clearly label the hysteresis loops for materials B and C. b) Explain any two features of the hysteresis loops you drew in (a). c) Suggest an application for material B. Justify your answer.
Question 1 The graph below shows the electrical conductivity of some elements from the periodic table. Antimony Carbon Ruthenium Copper Silver 0. 20 40 60 80 Electrical conductivity (x10° S/m) 1.1. With the aid of a clearly labelled graph, describe the effect of temperature on the electrical conductivity of copper and antimony. сopper 1.2. Explain the difference in the electrical conductivity of ruthenium and antinomy. 1.3. Adding small quantities of boron may increase the electrical conductivity of antimony. With the aid of a labelled diagram, explain how this is possible. Besides lower electrical conductivity, suggest a reason why ruthenium is not used in electrical transmission wires. Give a detailed response. 1.4.
A thermocouple is used to measure the temperature T1. The thermocouple reference junction labeled 2 is at a temperature of 20°C. The voltage output is measured using a potentiometer and found to be 4.686 mV. What is T1 in degrees RK: if the temperature values are not in the table, you have to use interpolation. Select one: O a. 98 O b. 118 O c. 105 O d. 108 Previous page Next page
12:30 Done Edit A 24.6 2 resistor found experimentally. in Ohm's law experiments, if its actual value is equal to 24 Q, then the percentage error in R is Select one: a. 0.025% b. 2.5 % c. 3.3% d. 0.033% Loay Aljboor 2020/11/13
O Estimate the MRR (in cc/sec) of an alloy containing 18% cobalt, 62% nickel and 20% chromium during ECM with current of 500 ampere. The density of the alloy is 8.28 g/cc. The following data is available. Metal Gram atomic weight Velency Cobalt 58.93 Nickel 58.71 2 Chromium 51.99 Assume Faraday's constant is 96500 coulombs/ mole.
The following resistance of a platinum resistance thermometer were measured at a range of temperature. Determine the measurement sensitivity of the instrument in milli Ohms/ oC. Resistance (mῼ) Tempreture (oC) 210k 110 217k 89 221k 68 228k 47
explain this graph Conductivity Concentration of KCL vs Conductivity 160 140 y = 240.17x + 2.5021 R? = 0.7371 120 100 80 60 40 20 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Concentration of KCL
In an electrical discharge machining process, the breakdown voltage across inter electrode gap (IEG) is 200 V and the capacitance of the RC circuit is 50 uF. The energy (in J) released per spark across the IEG is 1
i. Derive the linear and quatratic approximation of the below resistance temperature readings(temperature from 40 °c to 80 °c). (. ii. find out the resistance of RTD at a temperature of 200°c using linear approximation? ( Temperature 40 45 50 55 60[TO] 65 70 75 80 Resistance ohm 115.239 120.521 167.096 254.966 384.13 554.587 766.34 1019.38 1313.724
CALCULATE THE FOLLOWING: We performed the experiment to measure MATERIAL 1 - BRASS the thermal conductivity of 2 materials (Brass & Steel) in the laboratory and measured the following tabulated values: Calculation for Brass Quantities Values Material 1- BRASS Calculated Power (Q') W (Diameter = 25mm) Area of cross section (A) m2 Power Difference in Temperature Temperature (°C) between two points (AT) °C Difference in distance between two points (Ax) m Q' 1 2 3 (W) Thermal conductivity of brass (kp) W/m°C 4 5 6 8 9. 14.65 79 77.4 76 50.1 46.5 42.4 36 34.5 33.6 MATERIAL 2 - STEEL Calculation for Steel Material 2 - STEEL %3D Quantities Values Calculated (Diameter = 25mm) %3D Power (Q') W Power Area of cross section (A) m2 Temperature (°C) Difference in Temperature between two points (AT) °C Q' 1 |(W) Difference in distance between two points (Ax) m 2 3 7 8 14.2 88.6 87.5 85 33.9 33.6 32.4 Thermal conductivity of steel (kg) W/m°C
When stress is applied to a liquid over an application time tp the liquid needs a relaxation time tc to accordingly deform. Relaxation time tc is a physical property of liquids. The Deborah number is De= tdt, . The lower the Deborah number of a stress applied to a material the more.. : Select one: O The material behaves like a solid O The material behaves like visco-elastic O The material behaves like a liquid
Using the colored bands on the two resistors at your table, you determine that the two resistances of the resistors are 200 ohms with 5% tolerance and 100 ohms with a 20% tolerance. What would you expect the equivalent resistance of the two resistors to be (including the uncertainty) if they are connected in series? ) ohms ± Check