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Electromagnetism
Page 8
Questions (3,843)
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
1,210 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
17,306 views
The electromagnetic spectrum depicts the range of all possible frequencies of electromagnetic radiation.
The Electromagnetic
3 answers
asked anonymously
340 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
2,706 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-)
1,117 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
FF
223 views
The primary coil consists of 2 loops and there is a voltage of 6 V across the coil. If the secondary coil consists of 10 loops,
4 answers
asked by
Hi
1,450 views
In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis,3cm away from the origin in the +y
25 answers
asked by
asha
725 views
Which is the cause of the suns magnetic properties?
1 answer
asked by
Lynn
126 views
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar
5 answers
asked by
Rohan
1,974 views
A particle leaves the origin with a speed of 2.4 times 10^6 m/s at 38 degrees to the positive x axis. It moves in a uniform
3 answers
asked by
kenzie
1,932 views
How does the Coulomb force affect charge interactions?(1 point)
A. Like and opposite charges attract. B. Like charges attract,
2 answers
asked by
Anonymous
88 views
Which is the cause of the sun's magnetic properties?(1 point)
Responses rapid spinning of metals in the core rapid spinning of
4 answers
asked by
yamomma
61 views
Two identical small charged spheres, each having a mass of 3.00*10^-2 kg hang in equilibrium . The length L of each string is
2 answers
asked by
katlego
1,319 views
A long, straight wire carries a current of 740 mA. A thin metal rod 45 cm long is oriented perpendicular to the wire and moves
1 answer
asked by
Martina
667 views
A 550-turn solenoid is 15 cm long. The current in it is 33 A. A 3.0-cm-long straight wire cuts through the center of the
2 answers
asked by
Michael
790 views
When current travels through a wire, where is the magnetic field?
(Standard SPS10 c) A. The magnetic field is on the opposite
4 answers
asked by
Waiter
751 views
Parker wound a wire around a large iron nail. He then created an electromagnet by connecting the ends of the wire to different
4 answers
asked by
hi
561 views
An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is
3 answers
asked by
cr
580 views
Students built two electromagnets. The electromagnets are the same except that one has 20 wire coils around its core, and the
3 answers
asked by
the real BARNY THE DINO :)
323 views
A conductor consists of a circular loop of radius R and two straight, long sections The wire lies in the plane of the paper and
2 answers
asked by
ANITA
883 views
Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greatest when a.
1 answer
asked by
Anonymous
743 views
Using a simple model of an electromagnet describe the factors that increase the magntic field strength of an electromagnet
1 answer
asked by
:)
303 views
A current of 6.0 amps passes through a motor that has a resistance of 5.0 ohms. Calculate the power
30 watts 150 watts 180 watts
6 answers
asked by
Bubbles
3,379 views
An electron moving through an electric field experiences an acceleration of 6.1 multiplied by 103 m/s2.
(a) Find the electric
4 answers
asked by
jake
2,247 views
How do electromagnets cause a maglev train to levitate above the track? (1 point)
Responses Magnets in the sides of the tracks
1 answer
asked by
the real BARNY THE DINO :)
307 views
The current density of an ideal p-n junction under illumination can be described by:
J(V)=Jph−J0(eqVkT−1) where Jph is the
7 answers
asked by
Anonymous
3,918 views
An electron travels at a speed of 4.0×104 m/s through a uniform magnetic field whose magnitude is 1.4×10−3 T.
What is the
5 answers
asked by
Lanise
1,268 views
The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points
2 answers
asked by
Help
772 views
A student made an electromagnet using a battery, electrical tape, and metal wire. Which of the following actions will NOT
10 answers
asked by
GTA 5 Gt:trillesthooper2
2,397 views
We find an electric field of magnitude E = 1.2 x 107 V/m across a particular nerve membrane.
The potential difference between the
1 answer
asked by
Crystal
425 views
An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an
4 answers
asked by
UnKnown
1,674 views
After being exposed to an electromagnetic shrinking machine, Joe's height decreased by 120 cm over 1.5 seconds. His height
12 answers
asked by
Lover
3,227 views
A spherical cloud of charge of radius R contains a total charge +Q with a nonuniform volume charge density that varies according
3 answers
asked by
derival
1,569 views
A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular
4 answers
asked by
cr
933 views
A +6.00 µC charge is moving with a speed of 7.00 x 10^4 m/s parallel to a very long, straight wire. The wire is 5.00 cm from
7 answers
asked by
Mary
5,400 views
An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.3×10^7 m/s. What was the
4 answers
asked by
katie
2,215 views
Consider a coaxial cable with a central conducting wire (r=1mm) surrounded by an outer coaxial conducting sheath
4 answers
asked by
JuanPro
775 views
If the wavelength of line B is 142.5 nm, calculate the wavelength of line A.
Line A is the transition of n=6 to n=3 Line B is the
4 answers
asked by
Robin
1,861 views
How many protons are needed to produce a total charge of 2.5*10^-15 C?
4 answers
asked by
Matt
1,456 views
A proton traveling due east in a region that contains only a magnetic field experiences a vertically upward force away from the
5 answers
asked by
Daniel
3,765 views
Magnetic fields are produced by moving charges and exert
forces on moving charges. When a particle with charge q is moving with
4 answers
asked by
Phil
909 views
There are two situations in which it possible for a charged particle to be in a magnetic field but not experiencing a magnetic
5 answers
asked by
Connor
4,533 views
An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?
6 answers
asked by
a
4,564 views
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a
4 answers
asked by
abdul rahman
3,155 views
A square coil with 30 turns has sides that are 18 cm long. When it is placed in a 0.31-T magnetic field, a maximum torque of
4 answers
asked by
Keith
1,873 views
Two electrons are in the vicinity of a proton. The potential energy of the proton is −2.16×10−25 J. What is the potential
3 answers
asked by
Jimmy
1,320 views
A long wire carries a current of 20 A along the directed axis of a long solenoid. The field due to the solenoid is 4 mT. Find
4 answers
asked by
Maryam
2,091 views
Microwave ovens typically cook food using microwaves the a frequency of about 3.00 GHz (gigahertz 10 to the nine Hz). Show the
4 answers
asked by
bubba1
4,130 views
Two electrons are suspended in a field and are 2.0 cm away from each other. How much would the electric force between two
5 answers
asked by
help
280 views
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