/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 13 When working on a piece of equip... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 24: Problem 13

When working on a piece of equipment, electricians and electronics technicians sometimes attach a grounding wire to the equipment even after turning the device off and unplugging it. Why would they do this?

Short Answer

Expert verified
Answer: Electricians and electronics technicians attach a grounding wire to the equipment after turning it off and unplugging it to ensure that any residual currents or voltages are safely dissipated to the earth, reducing the risk of electric shocks. This precautionary measure is essential for their personal safety and the safety of others in the vicinity while working on electrical systems.

Step by step solution

01

Understand the purpose of grounding

Grounding is a safety measure that is taken to protect individuals from electrical hazards. In electrical systems, grounding connects the neutral points of electrical circuits to the earth, which helps to dissipate any residual voltages or currents that might be present in the system after it has been turned off and unplugged.
02

Identify why grounding is necessary after unplugging the equipment

Residual voltages and currents can still exist in electrical equipment even when it is turned off and unplugged. This can be due to different factors, such as capacitance within the circuit components, inductive and stored energy in transformers or inductors, or static charges. These residual voltages or currents can be potentially harmful and cause electric shocks to anyone working on the equipment. Electrical shocks can lead to injuries or even fatalities.
03

Explain the benefits of using a grounding wire in this case

Attaching a grounding wire to the equipment after turning it off and unplugging it will provide an additional path for residual currents or voltages to flow from the equipment to the earth. This will ensure that any remaining electrical charge is dissipated safely, reducing the risk of electric shocks to the person working on the equipment. By attaching a grounding wire to the equipment, electricians and electronics technicians are taking an important precaution to stay safe while working on electrical systems. This step helps protect against potential electrical hazards and is a crucial practice in ensuring their personal safety and the safety of others in the vicinity.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Thermocoax is a type of coaxial cable used for high-frequency filtering in cryogenic quantum computing experiments. Its stainless steel shield has an inner diameter of \(0.35 \mathrm{~mm},\) and its Nichrome conductor has a diameter of \(0.17 \mathrm{~mm}\). Nichrome is used because its resistance doesn't change much in going from room temperature to near absolute zero. The insulating dielectric is magnesium oxide \((\mathrm{MgO}),\) which has a dielectric constant of \(9.7 .\) Calculate the capacitance per meter of Thermocoax.

A proton traveling along the \(x\) -axis at a speed of \(1.0 \cdot 10^{6} \mathrm{~m} / \mathrm{s}\) enters the gap between the plates of a \(2.0-\mathrm{cm}-\) wide parallel plate capacitor. The surface charge distributions on the plates are given by \(\sigma=\pm 1.0 \cdot 10^{-6} \mathrm{C} / \mathrm{m}^{2}\). How far has the proton been deflected sideways \((\Delta y)\) when it reaches the far edge of the capacitor? Assume that the electric field is uniform inside the capacitor and zero outside.

A parallel plate capacitor is connected to a battery for charging. After some time, while the battery is still connected to the capacitor, the distance between the capacitor plates is doubled. Which of the following is (are) true? a) The electric field between the plates is halved. b) The potential difference of the battery is halved. c) The capacitance doubles. d) The potential difference across the plates does not change. e) The charge on the plates does not change.

A 4.00 -pF parallel plate capacitor has a potential difference of \(10.0 \mathrm{~V}\) across it. The plates are \(3.00 \mathrm{~mm}\) apart, and the space between them contains air. a) What is the charge on the capacitor? b) How much energy is stored in the capacitor? c) What is the area of the plates? d) What would the capacitance of this capacitor be if the space between the plates were filled with polystyrene?

The Earth can be thought of as a spherical capacitor. If the net charge on the Earth is \(-7.8 \cdot 10^{5} \mathrm{C},\) find \((\) a) the capacitance of the Earth and (b) the electric potential energy stored on the Earth's surface
See all solutions

Recommended explanations on Physics Textbooks

Astrophysics

Read Explanation

Mechanics and Materials

Read Explanation

Further Mechanics and Thermal Physics

Read Explanation

Rotational Dynamics

Read Explanation

Measurements

Read Explanation

Wave Optics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.