hen a wire carrying a current is wound into a series of loops called coils, each turn of the wire produces a magnetic field. The magnetic fields produced by these turns add together to produce a stronger magnetic field. A magnet formed in this way is called an electromagnet.
If you insert certain kinds of metal, such as iron, into the coil, the strength of the magnetic field increases even more. Iron contains tiny regions called domains that act like tiny magnets. Normally the domains point in all different directions. As a result, the iron metal is not magnetic. When an electric current passes through the coils, however, the domains line up. This adds to the strength of the electromagnet. The diagram shows a simple electromagnet with a wire coiled around a nail.
Think about another factor that might affect the strength of the magnetic field around an electromagnet. Express this as a question that you could answer through an investigation
please help!

Answer:

Hope it helped ↓

Explanation:

Electromagnets are basically coils of wire which behave like bar magnets with a distinct north and south pole when an electrical current passes through the coil. The static magnetic field produced by each individual coil loop is summed with its neighbor with the combined magnetic field concentrated like the single wire loop we looked at in the last tutorial in the center of the coil. The resultant static magnetic field with a north pole at one end and a south pole at the other is uniform and a lot more stronger in the center of the coil than around the exterior. So a good question could be "Are electromagnets a magnet that respells, or attracts?" Then find away to explain that question/

(you don't have to do this question it is just a example.)

Answer:

its what comes out of your but

and stinks

Explanation:

this is correct

Choose the answers from the drop-down menus. What type of isoline is indicated on this weather map? 1016 1028 1016 1046 1820 In what pressure region is a high-pressure area located? 1016 1020 1012 1024 1016 1012 1012 1016 1016 1020 ( 1024 1020 1012 What type of weather would likely be found in this area? 1012 1008 1016 Lioba 1016 1008 1020 1012 1016 1012 020 1008 w 1012 402e 1016 1012 1012 -1016 10.16 1046.​

explain the water cycle.

A ______________________is a group of stars that has been given a name to help us find certain stars or recognize them

a
cluster
b
gaggle
c
constellation
d
flock

True or False: Some organisms do not have cells.

100x100 wsbntxrdfdmxnjhdtnvj

How do you think meteorologists can predict the weather or forecast? to predict the weather .

What is a subscript used for in chemical equations?

Write number then solution!!!!!!!!!!!

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During an experiment, a scientist places a heat lamp above a bowl of water and uses the lamp to heat up the water. How does heat transfer from the lamp to the water?
Conduction
Convection
Radiation
None of the above

sorry i dont know what subject to put

PLS HELP ASAP
Describe how the wavelengths of energy is organized on the spectrum

Please just explain it in a small sentence but pls explain it!

How are the groups organized in the periodic table? What do all the elements in a group have in common?

A property in which opposite ends of a molecule are slightly charged is _____

What effect does salt water have on the strands of green onion?​

When sound travels through air, the air particles _______________. *

Which statement best describes how energy and matter move in a wave?

A
A wave transports matter without transporting energy.

B
A wave transports energy without transporting matter.

C
Both energy and matter are transported by a wave.

Viktor tests a solution with a strip of blue litmus paper. The paper turns pink. The solution is a _____.

weak acid
weak base
strong acid
strong base

Give me a example of a chemical reaction.

Hi there! could someone help with this? its due today.

At the end of the school day, the teacher gives each student a compass. She explains that a compass is made of a small piece of metal called a needle. She also told students that the Earth has a magnetic force around it. She asked students to use what they've learned about electric and magnetic forces to explain why a compass always points north.
Which of the following is the best explanation of why a compass points north?
A.The needle of the compass is likely pulled towards the north because the needle and north area of the Earth are both positively charged, causing an attraction.
B.Since the Earth has a magnetic force, it must attract one end of the needle. The needle likely has an electric force that is affected by the magnetic force of the Earth.
C.Since the Earth has a magnetic force, it must attract one end of the needle. The needle is likely magnetic and has opposite charges on each end
.D.The Earth's magnetic force causes metals, like the needle of a compass, to point north because of the electric force in the needle. They likely repel each other.

When a plant cell with 36 chromosomes goes through mitosis, how many daughter cells will be produced and how many chromosomes will be in each daughter cell?

What is the significance of a gene?Immersive Reader

In the Earth's mantle, hot magma near the core rises up and heats up the magma near the crust. How does the heat transfer from bottom of the mantle to the top?

Conduction

Convection

Radiation

None of the above

Fill in the blanks with the correct types of energy.

A: Thermal, Kinetic, Chemical.
B: Chemical, Thermal, Electric.
C: Thermal, Kinetic, Electric.
D: Electrical, Thermal, Chemical.

The Law of Moments is also an equation written as _____.

Which statement best describes metalloids?

A)They never conduct electricity or heat, there is no purpose for them other than in medicine.

B)The always conduct electricity and heat much better than all metals.

C)They are called semiconductors, used in electronics, conduct heat and electricity better than nonmetals, but not as well as metals.

D)They make up more than 75% (3/4) of the entire Periodic Table.

PLEASE HELP!!
Which statement is true?
A. The Sun's energy is completely blocked by Earth's atmosphere.
B. The Sun's energy passes through the atmosphere without warming it significantly.
C. The Sun's IR energy is absorbed by greenhouse gases.
D. The Sun's energy is primarily in the UV range.

Which of the following correctly lists the parts of the water cycle?

1. Evaporation, condensation, temperature, precipitation, collection
2. Condensation, build-up, runoff, precipitation, collection
3. Runoff, precipitation, evaporation, melting, condensation
4. Evaporation, condensation, precipitation, runoff, collection

This look correct? And if your gonna be rude please don’t answer just keep your mouth shut I am not in the mood to report and be mean today. * NO NAMES MENTIONED*

what is the reaction between copper sulphate and iron, answer fast will give the branliest