answersLogoWhite

0

Physics

User Avatar

Bethel Grady

Lvl 10
∙ 4y ago
☆★☆★☆★☆★☆★
No Reviews
Leave the first rating
Term1/13
What is the resistance in ohms of the computer-monitor combination when a desktop computer and monitor together draw about 1.2 A of current and they plug into a wall outlet that is 120 V
Definition1/13

60

Term1/13
An electric clothes dryer has a resistance of 16 ohms It draws 15 A of current What is the voltage in volts of the wall outlet that it is plugged into
Definition1/13

240

Term1/13
Do electric and magnetic fields always form closed loops
Definition1/13

Magnetic fields do, because there's no such thing as an isolated magnetic "pole",

and a magnetic line always starts and ends at opposite poles of the same

magnetized object.

But electric fields don't. You can easily have a bundle of isolated positive charge

over here and a bundle of isolated negative charge over there, whereupon the

lines of the electric field start on one bundle and end on the other bundle.

But electric field lines can also exist in closed loops, and they do that in radio waves, where the electromagnetic field propagates with an electric field component and a magnetic field component, and they both form closed loops.

Term1/13
In terms of the scientific definition of work neither magnetic fields nor electric fields can do work
Definition1/13

True

Term1/13
A material that prevents electrons from flowing freely is called what
Definition1/13

an insulator

Term1/13
In a parallel circuit the is the same for every leg in the circuit
Definition1/13

voltage

Term1/13
A portable electric heater has a resistance of 20 ohms It plugs into a wall outlet that is 120 V How much current in amps does it draw
Definition1/13

A voltage source of 120 V will supply a current of 6 Ainto a load of 20 ohms.

Ohm's law: Voltage equals current times resistance.

The alternate question, 10 ohm heater running on 120 V, was split from this question because it was not the same question.

Term1/13
Are accidental discoveries are good as non-accidental ones
Definition1/13

Most great discoveries started out as accidental. The discoverer usually wondered why something happened and began investigating and experimenting to learn about it.

Term1/13
In a closed circuit what does an increase in voltage cause
Definition1/13

an increase in current, hence increased power and increased heat.

Term1/13
What type of fields are created by an arrangement of electric charges or a current
Definition1/13

Magnetic fields can be created by charges or the flow of current.

Term1/13
Is an atom that has the same number of protons as neutrons a neutral atom
Definition1/13

False. The atom that has the same number of protons as it has electrons is a neutral atom.

Term1/13
Where would shock from an electrified fence be the least unpleasant if standing A barefoot on wet grass during rain B on a rubber mat or very dry ground C on a metal ladder against the fence
Definition1/13

You would need to be standing on some kind of electrical insulator, such as a rubber mat, or on very dry ground.

Term1/13
Which of the following would be best to do of you were inside a car and a power line fell on the car
Definition1/13

wait for someone from the power company to come ant help - APEX;0

🥳
Great job!
You studied all the cards in this guide.
Rate this guide:
☆★☆★☆★☆★☆★

Rate this Study Guide:

☆★☆★☆★☆★☆★
Cards in this guide (13)
What is the resistance in ohms of the computer-monitor combination when a desktop computer and monitor together draw about 1.2 A of current and they plug into a wall outlet that is 120 V

60

An electric clothes dryer has a resistance of 16 ohms It draws 15 A of current What is the voltage in volts of the wall outlet that it is plugged into

240

Do electric and magnetic fields always form closed loops

Magnetic fields do, because there's no such thing as an isolated magnetic "pole",

and a magnetic line always starts and ends at opposite poles of the same

magnetized object.

But electric fields don't. You can easily have a bundle of isolated positive charge

over here and a bundle of isolated negative charge over there, whereupon the

lines of the electric field start on one bundle and end on the other bundle.

But electric field lines can also exist in closed loops, and they do that in radio waves, where the electromagnetic field propagates with an electric field component and a magnetic field component, and they both form closed loops.

In terms of the scientific definition of work neither magnetic fields nor electric fields can do work

True

A material that prevents electrons from flowing freely is called what

an insulator

In a parallel circuit the is the same for every leg in the circuit

voltage

A portable electric heater has a resistance of 20 ohms It plugs into a wall outlet that is 120 V How much current in amps does it draw

A voltage source of 120 V will supply a current of 6 Ainto a load of 20 ohms.

Ohm's law: Voltage equals current times resistance.

The alternate question, 10 ohm heater running on 120 V, was split from this question because it was not the same question.

Are accidental discoveries are good as non-accidental ones

Most great discoveries started out as accidental. The discoverer usually wondered why something happened and began investigating and experimenting to learn about it.

In a closed circuit what does an increase in voltage cause

an increase in current, hence increased power and increased heat.

What type of fields are created by an arrangement of electric charges or a current

Magnetic fields can be created by charges or the flow of current.

Is an atom that has the same number of protons as neutrons a neutral atom

False. The atom that has the same number of protons as it has electrons is a neutral atom.

Where would shock from an electrified fence be the least unpleasant if standing A barefoot on wet grass during rain B on a rubber mat or very dry ground C on a metal ladder against the fence

You would need to be standing on some kind of electrical insulator, such as a rubber mat, or on very dry ground.

Which of the following would be best to do of you were inside a car and a power line fell on the car

wait for someone from the power company to come ant help - APEX;0

Related study guides
Trending Questions
How many 2x12 will it take to resupport the ceiling plate of a 17-foot load bearing wall to be removed from between 2 12-foot rooms and how many vertical 2x4 more than three are needed on the ends? When did Grant Taylor - actor - die? How do you make a veggisicle in Webkinz? How many staves are in a Christmas carol? How do zebras exercise in the wild? Explain the three motives for holding money? Average time of withdrawl from injecting 500mg bathsalt in a day? Which group of the periodic table has 3 electrons? What city is the black hills located in? What is the Venezuelan dollar called? What are modules of oracle? Who coined the phrase 'flying saucers' in regard to UFO incidents? What is the original meaning of terrific? If 21 dogs are 20.5 inches and 12 dogs are 32 inches what is the average height of the dogs? What is the towing capacity of a 2004 dodge ram 1500 with a 5.7 hemi? Where does hair production occur? What do you call the sound a bagpipe makes? How do you get on crystal island on sims 2 castaway? Did Elton John marry Nikita? Who were firestar's daughter and half son?

Resources

Leaderboard All Tags Unanswered

Top Categories

Algebra Chemistry Biology World History English Language Arts Psychology Computer Science Economics

Product

Community Guidelines Honor Code Flashcard Maker Study Guides Math Solver FAQ

Company

About Us Contact Us Terms of Service Privacy Policy Disclaimer Cookie Policy IP Issues
Answers Logo
Copyright ©2026 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.