Question

The image shows copper wire coiled around an iron nail and connected to a battery to create an electromagnet.

Which factors determine the strength of this electromagnet?



A.
the size of the nail and the size of the switch.

B.
the voltage of the battery and the size of the switch

C.
the number of coils of wire around the nail and the length of the wire in the circuit

D.
the amount of electric current and the number of wire coils around the nail

Answer 1

https://static.k12.com/calms_media/media/1145500_1146000/1145790/1/c8b0d168aef610f65af455737091ea78749d8482/MS2_PHY_08_13_assess_07_electromag.jpg

Answer 2

@wes_is_here @dm91 @radar @callielovesyhuu @yourcutesosmile @winsteria @pate16 @dm91 @PCOOPER @zasharra @CShrix @staldk3 @Supernaturallvr24 @superman38 @TheSmartOne @Tamara7301 @snackshack79 @Pawanyadav @They_Call_Me_Narii @TheEdwardsFamily @tatianalopez697

Answer 3

help

Answer 4

the first will get a medal

Answer 5

D

Answer 6

you are sure

Answer 7

i will see first if is right ok

Answer 8

What happens inside an electric generator?

A.
mechanical energy is changed to electrical energy

B.
magnetic energy is converted to electrical energy

C.
electrical energy is converted to magnetic energy

D.
chemical energy is changed to magnetic energy

Answer 9

what do you think the answer is?

Answer 10

a

Answer 11

Yes

Answer 12

ok

Answer 13

Which chart correctly identifies the properties of electric and magnetic fields?

A.
Property Electric Field Magnetic Field
Can be produced by moving electric charge X
Have two sides with opposite characteristics X X
Can make metals, such as nickel, iron, and cobalt, into magnets X X
Can be turned on or off with a switch X


B.
Property Electric Field Magnetic Field
Can be produced by moving electric charge X X
Have two sides with opposite characteristics X
Can make metals, such as nickel, iron, and cobalt, into magnets X X
Can be turned on or off with a swtich X


C.
Property Electric Field Magnetic Field
Can be produced by moving electric charge X
Have two sides with opposite characteristics X X
Can make metals, such as nickel, iron, and cobalt, into magnets X X
Can be turned on or off with a switch X


D.
Property Electric Field Magnetic Field
Can be produced by moving electric charge X X
Have two sides with opposite characteristics X
Can make metals, such as nickel, iron, and cobalt, into magnets X
Can be turned on or off with a swtich X X

Answer 14

c

Answer 15

@dm91

Answer 16

i would have to say C as well but i could be wrong

Answer 17

ok

Answer 18

Which factors affect the strength of the interaction between two electrically charged objects?

Choose all answers that are correct.

A.
how fast the electric fields travel

B.
the strength of the electric fields of the objects

C.
the distance each object is from the electric field of the other

D.
repulsive electric fields are stronger than attractive electric fields

Answer 19

What do you think it is?

Answer 20

wait

Answer 21

b and c

Answer 22

@dm91

Answer 23

one of your answers are
the distance each object is from the electric field of the other
the other is
how fast the electric fields travel
so yes B and C

Answer 24

ok

Answer 25

How can a magnetic field be used to generate an electric current?

A.
Electric current flows when a stationary magnet causes the magnetic field to change.

B.
When a magnet moves near a wire, the domains in the magnet line up and flow through the wire as electric current.

C.
When a magnet moves near a wire, its changing field causes the electrons in the wire to flow as electric current.

D.
Electrons in a wire flow when a stationary magnet causes the electrical field to change.

Answer 26

not sure d

Answer 27

C

Answer 28

Which electric circuit diagram correctly identifies the parts of the circuit?

A.


B.


C.


D.

Answer 29

: /

Answer 30

take a snap shot of the chooses so i can help you out better