5. It is found that the armature of a coil of wire increases from 50 ohms at 20°C to 60 ohms at 56°C. What isthe temperature coefficient of resistance of the conductor at 0°C?a. 0.00750c. 0.00936b. 0.00625d. 0.0208

Temperature coefficient of any resistive material is defined as the change of the value of…

Answered: emperature coetticient of resistance of…

Engineering

Electrical Engineering

emperature coetticient of resistance of the conductor at 0°C? 0.00750 c. 0.00936 . 0.00625 d. 0.0208

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

See similar textbooks

Related questions

Q: Question 1 A ferromagnetic core with a relative permeability of 1500 is shown in Figure 2. The…

Q: If the cross sectional area of a conductor is doubled, then the resistance of the conductor remains…

Q: 2 The wire shown has a current being carried to the right and point P is a distance r away from the…

A: By amperes law magnetic field due to long current carrying conductor is I2π×ρ where I is current…

Q: What will be the value of the twiddle factor: W42

A: Need to find twiddle factor

Q: The number of disc insulators used in a suspension insulator setup with string efficiency 80 %,…

A: In this question , we will find no of disc insulator used with given data..

Q: A hard-drawn copper conductor has a diameter of 0.41 in. What is the cross sectional area of this…

A: In this question We need to determine the cross sectional area of this conductor in cmil. We know…

Q: A copper conductor has a diameter of 0.6 in and it is 1200 ft long. Assume that it carries a total…

Q: Each of the conductor in a parallel-plate capacitor is called a. dielectric b. insulator c. plates…

A: Parallel Plate capacitors:- It is an arrangement of two conducting plates of equal dimensions are…

Q: What would be the inducesd voltage for a conductor moving at a speed of 25 km/h and having a length…

A: Given data, Speed of conductor, v=25 km/h Length, L=1 m Magnetic flux density, B=0.6 T

Q: A ferromagnetic core in the shape of a doughnut has a cross-sectional area of 0.11 m2 and an average…

A: The reluctance of the magnetic circuit is defined as:

Q: What will be the value of the twiddle factor: W42

A: In this case, the following twiddle factor is to be evaluated:W42

Q: .When current flows through a conductor connected to a DC source, what flows through the entire…

Q: The number of disc insulators used in a suspension insulator setup with string efficiency 85 %,…

Q: EFFECT ON RESISTANCE EFFECT ON CURRENT FLOW FACTORS Increase Electrical resistivity Decrease Higher…

A: Resistance is defined as the measure of the opposition of electric current.…

Q: The resistance of copper wire with α = 0.00393/C° at 20°C is 64 Q. At 94 °C, its resistance would be…

Q: Sag increases when the conductor ages due to this effect. O A. STAY RELAXATION O B. THERMAL…

Q: this is the ability of a material to conduct electricity a. impedane b. conductance c.…

A: Impedance , reactance and capacitance opposses the flow of alternating current while conductance is…

Q: Two conductors, one of copper and the other of iron, are connected in parallel and carry equal…

Q: The magnetic susceptibility of aluminium is 2.1×10-5. The permeability and relative permeability…

A: Given, Susceptibility of aluminum is, χ=2.1×10-5=0.000021 and it is the proportionality constant…

Q: 10/ Sag increases when the conductor ages due to this effect. A. THERMAL EXPANSION B. ELASTIC…

A: Given To find the which conductor property is responsible for increase in sag.

Q: The number of disc insulators used in a suspension insulator setup with string efficiency 90 %,…

A: In this question , we will find no of disc insulator with given data..

Q: A2 TW conducttor is installed in a location where the ambient mperature is expected to be 102"F. The…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Determine the magnetic field intensity of a magnetic field on a 3.4 Wb pole if the force acting on…

A: Let pole strength of a pole placed on magnetic field is X wb and Force acting on it is F. Magnetic…

Q: The number of disc insulators used in a suspension insulator setup with string efficiency 80 %,…

Q: Determine the breakdown voltage of air gaps 2mm 15 mm length under uniform field. Also determine the…

A: It is given that: d1=2 mm=0.2 cmd2=15 mm=1.5 cm

Q: Q1- The given ferromagnetic core relative permeability is 800. Determine the total reluctance of the…

A: According to the question we have to calculate the value of reluctance with the help of given core…

Q: It is found that the armature of a coil of wire increases from 50 ohms at 20°C to 60 ohms at 56°C.…

A: The solution can be achieved as follows.

Q: A certain batch of copper wire was found to have a conductivity of 98% at 20°C. What is its…

Q: a)Draw magnetization curve for iron under AC excitation at 0 Hz, 50 Hz, and 100Hz on the same graph.…

Q: Draw rough sketches showing the following: a. A current which lags the voltage by 60 degrees b. A…

A: Given a. A current which lags the voltage by 60 degreesb. A current which leads the voltage by 60…

Concept explainers

Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.

Question

5. It is found that the armature of a coil of wire increases from 50 ohms at 20°C to 60 ohms at 56°C. What is
the temperature coefficient of resistance of the conductor at 0°C?
a. 0.00750
c. 0.00936
b. 0.00625
d. 0.0208

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

temperature rating that a conductor must have and still have 69 Ambient Tempere 4. The ampacity of 15 current-carrying 10 RHW aluminum conduc- tors in a raceway in an ambient temperature of 75'F is 1. gon factor for conductor ampacity in this location is (a) 12A (b) 15A (c) 22A (d) 30A 0.71 b0.82 0.88 0.96 5. Ain) uous load if the ambient temperature is 75°F and there are nine THHN conductor is required for a 19.70A noncontin- ne ambient temperature is 71"C, the minimum insulation current-carrying conductors in the raceway in a dry location. he capacity to carry current is (a) 14 (b) 12 (c) 10 A 60°C AI 90°C 105°C (d) 8 0 120°C 6. 6.11 Ampacity Adjustment [310.15(B)(3)(a)] The ampacity for each of nine current-carrying 10 THW conduc- tors installed in a 20 in. long raceway is 1 The ampacity of six current-carrying 4/0 XHHW aluminum con- ductors installed in a ground floor slab (wet location) is (a) 25A (b) 30A (c) 35A (d) 40A a) 135A 0) 144A (e) 185A 4 210A
Discuss the relationship between voltage break down and humidity, temperature and distance explain with curve
If the cross sectional area of a conductor is doubled, then the resistance of the conductor remains the same. becomes half of the initial value. becomes double the initial value. becomes four times the initial value.
A copper conductor has a diameter of 0.6 in and it is 1200 ft long. Assume that it carries a total dc current of 50 A. Find the total resistance of the conductor and the current density. The resistivity of copper is 1.72 x 10-8 2-m.
The resistance of the wire increases from 40 ohms at 10°C to 48.25 ohms at 60°C. Find the temperature coefficient of resistance at 0°C of the conductor material.
22
5) This MCQ QUESTION FROM BASIC POWER ELECTRICAL ENGINEERING course. just write for me the the correct answer.
Which of the following is not true for ferromagnetic materials? Please choose one: a. High?mthey have value. b.Above the Curie temperature, they lose their non-linear properties. C. a fixedµrthey have value. D.The energy loss is proportional to the area of the hysteresis loop.
2. If the length of a conductor is halved, then the resistance of the conductor a. becomes double the initial value. b. remains the same. c. becomes half of the initial value. d. becomes four times the initial value.
An iron core has a cross-sectional area of 10-3 square meter and mean circumference of 1 meter. The relative permeability of the material is 500 and the number of turns is 200. Determine the current required to set up a flux of0.001 weber. 7.54 A b. 7.96 A c. 8.19 A d. 8.47 A a.
10/ Sag increases when the conductor ages due to this effect. A. THERMAL EXPANSION B. ELASTIC STRETCH C. METALLURGICAL CREEP D. STAY RELAXATION
For the conductor in the figure which has two different conductivities, 01>02. The power of the Joule losses in each of the pieces. This power is: (Justify the answer) - Higher in the part with higher conductivity. - Higher in the part with lower conductivity. - Equal in both pieces. - The response depends on other material parameters. 0₁ 02 PJI PJ2