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Electromagnetism
Page 3
Questions (3,843)
What is the ratio of the wavelength of visible light of wavelength600 nm to that of an FM radio wave of frequency 100 MHz? c =
4 answers
asked by
Amy
1,547 views
A positive charge of 3.0e-6 C is pulled on by two negative charges. One, -1.9e-6 C, is 0.045 m to the north and the other,
4 answers
asked by
Sarah
1,937 views
An electron is moving parallel to the Earth’s surface at the equator in a direction 25° south of east. Its velocity is 7.3 ´
4 answers
asked by
Ali
843 views
Three point charges are placed at the following points on the x- axis;+2uc at x=0,-3uc at x=40cm,-5uc at x=120cm.find the force
3 answers
asked by
Samson
1,544 views
A positive charge Q is on the y-axis at a distance a from the origin, and another positive charge q is on the x-axis at a
2 answers
asked by
Patrick
1,285 views
one electron travels twice as fast as another. Which has the longer wavelength?
3 answers
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Anonymous
1,430 views
A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at
3 answers
asked by
Luigi
851 views
The potential at the surface of a sphere (radius R) is given by
V_0 = k cos 3theta where k is constant. Find the potential inside
3 answers
asked by
Kim
1,336 views
• A charged particle with charge q is moving with speed v in a uniform magnetic field. A second identical charged particle is
1 answer
asked by
jami
401 views
1. The figure shows a conducting loop of wire in the field of a magnet which is behind the loop. The South Pole of the magnet is
2 answers
asked by
MP
690 views
A battery of emf and negligible internal resistance is connected to two resistances R1 and R2 in series. What is the potential
3 answers
asked by
john
1,023 views
A student connects a battery to a wire and wraps the wire around an iron nail to produce an electromagnet. Which action should
1 answer
asked by
Gelo
139 views
State only Gauss law in integral form.Use it to find out electric field due to an isolated homogeneous sphere of charges at an
2 answers
asked by
mania
490 views
Two parallel wires carry currents I1=100A and I2 (they run in the same direction). The top wire is held in position; the bottom
1 answer
asked by
lauren
486 views
Three negative charges with charge –q occupy the vertices of an equilateral triangle with sides of length L as shown below
a)
1 answer
asked anonymously
55 views
Students build four electromagnets and test them by picking up metal tacks. Here are their partial results.
12 coils 4 tacks 24
1 answer
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Griffith Femto
49 views
Which statement best describes how an electromagnetic motor works?(1 point)
Responses Electrons are moved through a circuit,
1 answer
asked anonymously
33 views
A four-pole alternator has a uniform magnetic flux density of 0,5 T. A square coil with 200 turns and sides of 18cm is rotated
1 answer
asked anonymously
43 views
Use the image to answer the question.
A diagram shows a wire carrying a current in vertical direction. The magnetic field drawn
1 answer
asked anonymously
35 views
Which statement best describes how an electromagnetic motor works?(1 point)
Responses Electrons are moved through a magnet,
1 answer
asked anonymously
44 views
Two electromagnets are made with the same core and the same type of wire. Electromagnet A has a low-intensity current, and
1 answer
asked anonymously
25 views
Two electromagnets are made with the same core and the same type of wire. Electromagnet A has a low-intensity current, and
1 answer
asked anonymously
49 views
An electromagnet is a coil of wire with a current running through it. This creates an electromagnetic field. An additional
7 answers
asked anonymously
55 views
An electromagnet the most powerful type of magnet there is, it is my name of the current running through it, that you can turn
1 answer
asked by
Help me❤️❤️❤️❤️
25 views
A student connects a battery to a wire and wraps the wire around an iron nail produced an electromagnet which action should the
1 answer
asked anonymously
43 views
Two electromagnets I made with the same core in the same type of wire electromagnet has a low intensity. Current and
1 answer
asked anonymously
28 views
A student connects a battery to wire and wraps the wire around an iron nail to produce an electromagnet. Which action should the
1 answer
asked anonymously
34 views
Use the table of information about four electromagnets to answer the question.
Electromagnet Current Intensity Number of Turns in
5 answers
asked anonymously
44 views
Two electromagnets are made with the same core and same type of wire. Electromagnet he has a low intensity current, and
1 answer
asked anonymously
36 views
Non-Contact Forces Unit Test
11 of 1311 of 13 Items Question Use the table to answer the question. Electromagnet Current
1 answer
asked anonymously
64 views
What are some ways you could make an electromagnetic motor stronger, and how could you apply these principles to everyday life?
1 answer
asked by
I NEED ANSWERS!!❤️
19 views
A negatively charged particle is attracted to(1 point)
Responses negatively charged particles. negatively charged particles. all
1 answer
asked anonymously
83 views
rf eawdcx
5 answers
asked anonymously
10 views
Which is the best description of how to build an electromagnet?(1 point) Responses Wrap a wire around an iron or steel core at
1 answer
asked anonymously
17 views
What produces the magnetic force of an electromagnet?(1 point)
Responses movement of charged particles through the wire movement
1 answer
asked by
yes
13 views
Which statement best describes how an electromagnetic motor works?(1 point)
Responses Electrons are moved through a circuit,
1 answer
asked by
you isn't getting my name
20 views
Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point)
Responses increasing the
5 answers
asked anonymously
6 views
Four students made models of an electromagnet. Which model is most likely to produce the strongest magnetic field?
* 1 point
1 answer
asked anonymously
8 views
What is the magnitude of the magnetic field at point B produced by a current I if the magnitude of the field at point A is B0?
A)
4 answers
asked by
harry
702 views
Eight charges (50μC each) are arranged on the corners of a cube side length 1 cm. What is the magnitude of the force on each
4 answers
asked by
Anonymous
1,215 views
A long wire carries a current of 1 ampere.Find the magnitude of the magnetic field 2 meter away from the wire.
4 answers
asked by
ace
2,371 views
A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing
1 answer
asked by
dude
459 views
Which of the following electromagnets would have the greatest magnetic field?
a b c d
1 answer
asked by
kali
137 views
12. Describe the principle of the direct current motor
13. How far from a straight current−carrying wire carrying a current of
1 answer
asked by
Fuad faji jemal
115 views
Maria makes an electromagnet shown in the figure below. The battery has a voltage of 6.0V, and she uses an iron nail. Which of
1 answer
asked by
kali
128 views
Question 14
What is the effect on the strength of an electromagnet when you increase the number of coils? a The strength
1 answer
asked by
social studies
110 views
Name three uses of an electromagnet
1 answer
asked by
asjdhwuei
69 views
The image illustrates that as the distance between two oppositely charged particles increases, the force of attraction between
1 answer
asked by
Help The ELA Kid📃✏️😔
114 views
The momentum of a photon with a wavelength of 725 nm is:
Question 15 options: A) 9.14 × 10-28 kg ∙ m/s B) 9.14 × 10-25 kg ∙
1 answer
asked by
oyebodegoldencity
77 views
What is an electric field
2 answers
asked by
Sinachi
121 views
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