Determine the resistance of 150m of single copper cable whose CSA is 10mm². Take
the resistivity of copper to be 17.2 x 10° ohm/metre'.

Answers

Answer 1

Answer:

1 x 10⁻¹¹m²

Explanation:

Given parameters:

Resistivity = 100 x 10⁻⁶Ohm.m

Cross-section = 1mm²

Resistance = 10ohm

Unknown:

length of the nichrome wire = ?

Solution:

To find the length of the nichrome wire, we use the expression below:

       L = \frac{RA}{P}PRA

where l is the length of the wire

          R is the resistance of the wire

            A is the area

             p is the resistivity

Now we need to convert area from mm to m;

     1000mm = 1 m

  1mm² = 1 x \frac{1m}{1000mm} x \frac{1m}{1000mm}1000mm1mx1000mm1m = 1 x  10⁻⁶m²

Input the values in the formula;

   L = \frac{100 x 10^{-6} x 1 x 10^{-6} }{10}10100x10−6x1x10−6 = 1 x 10⁻¹¹m²


Related Questions

how thick is this brake disc?​

Answers

Answer:

44 1/2 mm

Explanation:

what are 5 advantages of wood as a manufacturing or construction​

Answers

Answer:

Wood Enhances Energy Efficiency

Wood has a higher insulation rating than either steel or plastic as a result of its natural cellular structure. This means that homes and buildings require less energy to maintain heating and cooling, plus wood can help regulate humidity levels to a small degree.

Which of these is a characteristic of a reform movement?

Answers

Final answer:

A reform movement is one that seeks specific changes within the social structure, for instance, advocating for rights and freedoms, without advocating for a complete overhaul of society.

Explanation:

A characteristic of a reform movement is that it seeks to change something specific about the social structure, rather than seeking a complete overhaul of society like revolutionary movements or focusing on inner change like religious movements. Reform movements, such as the anti-slavery movement or the women's rights movement of the 1820-1840 period, work to address societal issues and improve conditions within existing frameworks, advocating for a greater body of rights and freedoms. These movements may focus on aspects such as temperance, anti-nuclear advocacy, or civil rights, and they derive from a practical observation of real-world problems rather than supernatural beliefs.

Notable historical examples of reform movements include the efforts of advocates like William Lloyd Garrison and Frederick Douglass during the early 19th century, who diligently worked towards abolishing slavery and advancing women's rights. Similarly, the social gospel movement showcased reform within religious institutions, focusing on applying Christian ethics to labor reform and poverty alleviation.

True or False: Drag and tailwind are examples of a contact force.
tyy guyss

Answers

Answer: false

Explanation:

The statement "Drag and tailwind are examples of a contact force" is false.

The term which is utilized to characterize a push/pull relationship or connection that happens whenever one item collides with another one is a contact force.Trying to push an automobile or vehicle up a slope, writing one's name with a pen, or taking up a novel or notebook from the table all seem to be instances of contact force.

Thus the response above is appropriate.

Learn more about Contact force here:

https://brainly.com/question/17597573

If an airplane was experiencing a thrust force of 450 N and there was a drag of 200 N. What would the resulting net force be?

thxx

Answers

Answer:

250 N

Explanation:

Drag opposes the direction of motion, so it points in the opposite direction of thrust.  Therefore, the net force is:

∑F = 450 N − 200 N

∑F = 250 N

Which is one of the aspects of PR in game marketing? A. It creates and discusses marketing strategy. B. It deploys a community of online players. C. It decides the geographics of the game. D. It constructs game demos.

Answers

Answer:d

Explanation:

Most likely

What are other names for convex mirrors?

Answers

Diverging Mirror is all I know of not sure of any other names

Which of the following best describes what happens when ice is placed in a warm glass of water?
A. The ice floats to the top, but small pieces break off and are suspended in the liquid to cool it through convection
B. Heat from the glass moves through the liquid to melt the ice through radiation
C. The heat from the surrounding liquid is transferred to the ice through conduction
D.The ice transfers the cold temperature to the surrounding water through convection

Answers

D. The ice transfers the cold temperature to the surrounding water through convection
Final answer:

Heat from surrounding water is transferred to the ice through conduction, leading to an increase in energy of the ice molecules and causing the ice to melt.

Explanation:

When ice is placed in a warm glass of water, the correct description of what happens is that heat from the surrounding liquid is transferred to the ice through conduction. The water molecules around the ice have more kinetic energy compared to the molecules within the ice. As the energy transfer occurs, the water molecules transfer some of their kinetic energy to the ice molecules, which increases their energy and eventually leads to the melting of the ice.

Why is understanding the risk

Answers

Answer:

By understanding systemic risk, engineering managers are also more likely to be flexible and responsive to the dynamic business environment. This makes them more agile when managing overall project risks.

Is this the answer to your question because I'm assuming you're here to learn about engineering?




If a worksite includes more than one set of management and workers, who should have access to the information, training, and controls needed to avoid workplace accidents?

Answers

To collaboratively reduce workplace accidents and promote a cooperative safety culture, information, training, and controls should be made available to all levels of management and employees from all teams.

All relevant staff, regardless of their hierarchical positions, should have access to information, training, and controls to prevent workplace accidents at a company with different sets of management and employees.

In order to enable proactive hazard detection and risk mitigation, a comprehensive approach to safety entails exchanging essential information and training across teams.

Thus, a collaborative safety culture can be established, resulting in a safer work environment for everyone engaged and a team effort in accident prevention, by making sure that all levels of management and employees have the appropriate knowledge and tools.

For more details regarding collaborative safety, visit:

https://brainly.com/question/26106814

#SPJ12

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