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Electromagnetism
Page 7
Questions (3,766)
Seamus made an electromagnet from an iron nail, a piece of copper wire with three coils spread out across the nail, and a
1 answer
asked by
Ken
92 views
Which statement about electromagnets is correct?(1 point)
Responses A north pole and south pole repel each other. A north pole
1 answer
asked by
456789
160 views
How does changing the direction of the charge (positive/negative) influence the force between the two charges?
If both charges
1 answer
asked by
A
97 views
Electromagnet Current Intensity Number of Turns in the Wire
W medium 10 X low 10 Y medium 50 Z low 50 Which electromagnet will
3 answers
asked by
Help the ELA Kid😔✏️📃
316 views
What category is electromagnetism under for science
1 answer
asked by
Science
57 views
What type of science talks about magnetic fields
1 answer
asked by
Science
38 views
An electromagnet is created by wrapping a wire conductor around a metal core and sending a current through it. If the number of
1 answer
asked by
Science
98 views
For the magnetic field created around a current carrying wire in an electromagnet, the ___________ the current, the ________ the
1 answer
asked by
Science
74 views
For the magnetic field created around a current carrying wire in an electromagnet, the ___________ the current, the ________ the
1 answer
asked by
Science
55 views
Amari is researching an electric car. He finds this graph, which shows how much range, measured in kilometers, the car gains
1 answer
asked by
Madeline
171 views
Which statement about electromagnets is correct? (1 point)
OA north pole and a south pole attract each other O Two south poles
1 answer
asked by
Hlo
143 views
Which of the following statements accurately reflects the relationship between force and distance in Coulomb's Law? (1 point)
The
1 answer
asked by
Hlo
97 views
How much current must pass through a 400-turn ideal solenoid that is 4.0 cm long to generate a 1.0-T magnetic field at the
1 answer
asked by
ant
54 views
A cosmic-ray proton in interstellar space has an energy of 12.5 MeV and executes a circular orbit having a radius equal to that
1 answer
asked by
ant
82 views
Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point)
Responses increasing the
1 answer
asked by
meli
112 views
A student rubs a rubber rod with fur, producing a negative charge on the rod. The student then touches the rod to a hollow,
1 answer
asked by
bruh
116 views
A student rubs a rubber rod with fur, producing a negative charge on the rod. The student then touches the rod to a hollow,
1 answer
asked by
bruh
69 views
How does an AC generator compare to an electric motor?
Electric motors power AC generators. They are the same. They use different
1 answer
asked by
mir
77 views
How do neon lights work?
a solid is heated with electricity UV light causes powder to glow electric discharges through gases a
1 answer
asked by
mir
68 views
Which term refers to the way information is encoded into a radio signal?
modulation frequency amplitude spectrum
4 answers
asked by
mir
66 views
In electromagnetic waves, how do the magnetic fields relate to the electric fields?
They are at 45-degree angles to each other.
1 answer
asked by
mir
91 views
An electromagnetic wave consists of _____ that move at the speed of light.
vibrating magnetic fields vibrating electric and
1 answer
asked by
mir
97 views
Imagine two equally charged objects that are hanging a certain distance from one another. How does the force between them change
1 answer
asked by
social studies
58 views
Strength of Electrical Forces Quick Check
5 of 55 of 5 Items Question Which of the following statements accurately reflects the
3 answers
asked by
social studies
266 views
The picture shows an electromagnet and two paper clips that are the same size and are made of the same materials.
Which is the
5 answers
asked by
Anonymous ;)
417 views
A mechanic dropped a bolt he needed to repair a car motor. He decided to make a simple electromagnet to try to attract the metal
1 answer
asked by
Anonymous ;)
301 views
List two ways you can increase the strength of an electromagnet and explain how they would increase the strength.
Your answer:
1 answer
asked by
A
107 views
What is the most likely explanation for the failed experiment?
a The battery is too low voltage to work b The electromagnet needs
1 answer
asked by
A
123 views
Increasing the number of coils in an electromagnet will cause the strength of the magnetic field to decrease.
True False
1 answer
asked by
A
111 views
How could you increase the strength of your electromagnet? (Select all that apply)
a Decrease the current flowing through the
1 answer
asked by
A
114 views
the electric or magnetic force that acts between like charged objects, causing them to push apart
1 answer
asked by
A
93 views
the electric or magnetic forces that acts between oppositely charged objects, causing them to be pulled together
1 answer
asked by
A
74 views
The factors that affect electrostatic force.
1 answer
asked by
j
53 views
The factors that affect magnetic force.
1 answer
asked by
j
87 views
The attractive and repulsive force (push and pull) between charged particles of matter is an .
1 answer
asked by
j
132 views
Current-carrying wires produce which kind of fields?
a frictional b gravitational c chemical d magnetic
3 answers
asked by
Anonymous ;)
101 views
An object has a charge of 50 electrons. What is the charge on the object in picocoulomb
1 answer
asked by
Boitumelo
69 views
What will happen to the property of the electromagnet with an increasing number of coils?
The electromagnetic properties will not
1 answer
asked by
I.D.C.I.I.C.I.S.S.I.N.T.D.W.H.T.B.D.
141 views
Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of
4 answers
asked by
Physics
4,864 views
Three charges q, 2q, and 3q are arragend to form a equileteral triangle. A charge Q is placed at the center of the triagle.
2 answers
asked by
Vinicius Bersek
476 views
Four charges are arranged in a square with sides of length 2.5cm. The two charges in the top right and bottom left corners are
3 answers
asked by
Tlotliso semelane
330 views
The electrons in the beam of a television tube have a kinetic energy of 2.10 10-15 J. Initially, the electrons move horizontally
6 answers
asked by
Mary
3,674 views
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of
2 answers
asked by
BJ
532 views
A 59.0 -turn, 4.10-cm-diameter coil with R = 0.530 {\Omega} surrounds a 1.70-cm-diameter solenoid. The solenoid is 21.0 cm long
5 answers
asked by
Spencer
541 views
Four equal point charges, +3micro coulomb, are placed at the four corners of a square that is 40cm on a side. Find the force on
5 answers
asked by
John
1,800 views
1. Two concentric conducting spherical shells have radii of 0.145 m. and 0.215 m. The inner sphere bears a charge of -3.00E-08
3 answers
asked by
andrew
1,207 views
An advantage of using an electromagnet, shown on the crane in the image below, instead of a regular magnet to move cars in a
60 answers
asked by
new moon
17,301 views
The electromagnetic spectrum depicts the range of all possible frequencies of electromagnetic radiation.
The Electromagnetic
3 answers
asked anonymously
337 views
A radio signal travels at
3 . 00 ⋅ 10 8 meters per second. How many seconds will it take for a radio signal to travel from a
7 answers
asked by
Leapordclaw
2,698 views
An electromagnet is a coil of wire with a current running through it. This creates an electromagnetic field. An additional
6 answers
asked by
(-ᴥ-)
1,113 views
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