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Electromagnetism
Page 2
Questions (3,842)
A proton with a velocity of 2.0 x 10^7 m/s in the horizontal (+x) direction enters a region of uniform magnetic field that is 1
5 answers
asked by
James
1,083 views
A conducting sphere has a net charge of +Q . Points A and B are on opposite sides of the surface of the sphere. If a point
5 answers
asked by
Brady
1,721 views
A student wishes to make the magnetic force exerted by the electromagnet shown below greater.
image
4 answers
asked by
Anonymous ;)
451 views
Use the table to answer the question.
Electromagnet Current Intensity Number of Turns P medium 20 Q low 20 R low 15 Which list
5 answers
asked by
*shrugs shoulders
272 views
What causes a maglev train to hover above the track?(1 point)
Responses repellant magnetic force repellant magnetic force
4 answers
asked by
456789
192 views
Which of the following interactions in the data set below will have an attractive electrical force?
Interaction Object 1 Charge
7 answers
asked by
A
288 views
A(n) is created by passing current through a coil of wire wrapped about an iron core.
a permanent magnet b motor c electromagnet
3 answers
asked by
A
260 views
An electromagnet is a coil of wire with a current running through it. This creates an electromagnetic field. An additional
7 answers
asked by
mustache
4,528 views
A cosmic-ray proton in interstellar space has an energy of 11.0 MeV and executes a circular orbit having a radius equal to that
4 answers
asked by
Edmound
2,906 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
7 answers
asked by
Rachel
2,796 views
what effect did scientists originally think that the intensity of light shining on a photosensitive surface would have on
5 answers
asked by
aaa
2,271 views
8. Determine the acceleration of a proton in an electric field of 500 N/C. How many times is this greater than that due to
4 answers
asked by
ike
1,496 views
The energy stored in a capacitor with capacitance C, having an electric potential difference ΔV, is represented by W = 1/2 C
4 answers
asked by
Cory
2,302 views
An electron and a proton are separated by 2.0 nm. (a) What is the magnitude of the force on the electron? (b) What is the net
4 answers
asked by
Jay
1,480 views
Two identical metal spheres have charges of q1 and q2. They are brought together so they touch, and then they are separated. (a)
5 answers
asked by
Jayflord
4,170 views
Am i Correct?
2.0 cm*.044T*/.10 s= 0.88 V Each side of a square loop of wire measures 2.0 cm. A magnetic field of 0.044 T
3 answers
asked by
Me and I
1,180 views
Each charge of 3 micro coulomb are placed at 3 corners of a square whose diagonal is 6cm long. Find the field intensity at the
3 answers
asked by
bareera
1,137 views
How is a magnetic field produced? (1 point)
• when an electromagnetic field interacts with a magnet • when a current runs
1 answer
asked anonymously
59 views
A student wraps insulated copper wire 12 times around a nail, and connects the ends to a fresh 9-volt battery. The student finds
1 answer
asked by
ANSWER CORRECTLY
41 views
A group of students want to see if they can make an electromagnet that shows evidence of an electrical/magnetic field. They find
1 answer
asked by
Awesome sauce
21 views
In models of magnetic and electric fields, why are field vectors depicted by arrows?(1 point) Responses
because they represent
1 answer
asked by
.
76 views
In 1–2 sentences, explain how electromagnets move a maglev train.(2 points)
And write like a fourth grader
1 answer
asked by
u dont know me
19 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
uythc
51 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 by
yes
16 views
A sphere of unknown mass with a net charge, Q is released from rest in a uniform electric field, E. After it travels a
4 answers
asked by
anonymous
684 views
Which statement explains how the charges on objects determine the electric force between them?(1 point)
Responses Objects with
7 answers
asked by
*shrugs shoulders
276 views
Using Coulomb's Law, if the distance between two charged objects is decreased, what happens to the electric force between them?
a
1 answer
asked by
social studies
265 views
Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded
10 answers
asked by
aaka
1,102 views
calculate the resistances of (a) 100-watt 120-volt incandescent lamp, (b) a 750-watt 115-volt toaster, (c) a 1300 watt 110-volt
5 answers
asked by
lee
4,386 views
Portfolio: you will design an experiment to investigate the relationship between the number of cool loops and the strength of a
7 answers
asked by
Melody
3,222 views
note: E is for exponetial
two large horizontal, parallel metal plates are 2.5cm apart in air and the upper is maintained at a
5 answers
asked by
matrix school 2
1,349 views
what causes the current in a loudspeaker to go backwards and forwards
7 answers
asked by
noor
1,250 views
If the charge to mass ratio of a proton is 9.58 x 10^7 coulomb/kilogram and the charge is 1.60 x10^-19 coulomb, what is the mass
5 answers
asked by
Hannah
3,246 views
the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the
4 answers
asked by
ana
3,751 views
The drawing shows two surfaces that have the same area. A uniform magnetic field B fills the space occupied by these surfaces
4 answers
asked by
Mary
3,924 views
What does the photoelectric effect show about the connection between light and electrons?
A. Light can remove electrons from
4 answers
asked by
Morgan
1,846 views
a Negative Charge of -6.0 x 10^-6 C exerts an attractive force of 65 N on a second charge 0.050 m away. What is the magnitude on
4 answers
asked by
Tadeija
2,724 views
A force of 0.053 N is required to move a charge of 36 µ a distance of 30 cm in a uniform electric field. What is the size of
4 answers
asked by
tyler
3,329 views
Which of the following events is caused by magnetic force?
A) A person gets a shock from a doorknob after walking across carpet.
5 answers
asked by
I Need Help!
1,706 views
A charge with a value of 3.0 x 10-5 C is located 2.5 cm from a charge with a value of 6.5 x 10-5 C. Determine the distance from
4 answers
asked by
Arnold
1,235 views
A free proton and a free electron are placed in a uniform electric field. Which of the 2 will experience a greater acceleration?
4 answers
asked by
Krishna santhosh
6,674 views
four identical metallic objects carry the following charges: 1.6, 6.2, -4.8, and -9.4 μC. the objects are brought
4 answers
asked by
kim
1,924 views
2. How might the following things affect the strength of the electromagnet (nail and coil and battery)?
◦ Thickness of the
5 answers
asked by
Anonymous
2,359 views
The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the
4 answers
asked by
Jackie
1,411 views
A proton is traveling at 2.3E6 m/s in a circular path in 0.75 T magnetic field. What is the magnitude of the force of the
4 answers
asked by
Chantelle
952 views
Four point charges are located at the corners of a square with sides of length a. Two of the charges are +q, and two are -q.
3 answers
asked by
need help
2,482 views
If I made an electromagnet what would the variables be. controlled, dependent and independent
3 answers
asked by
Mia
848 views
A wasp accumulates 1.0x10^-14C of charge while flying perpendicular to the earth's magnetic field of 4.0X10^-5T. How fast is the
4 answers
asked by
Ryan
1,995 views
Find the electric field at a point midway between 2 charges of +40.0e-9 C and +60.0E-9 C separated by a distance of 30.0 cm.
My
4 answers
asked by
Marissa
3,725 views
the intensity and direction of the electric field produced by an alpha particle at a distance of 5.0 x10^-11m from the particle
4 answers
asked by
Anonymous
1,231 views
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