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Electromagnetism
Page 8
Questions (3,923)
what are the forces on two charges of +0.60 C and +2.0 C, respectively, if they are separated by a distance of 3.0 m?
4 answers
asked by
Anonymous
1,293 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
5,411 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
2,224 views
Consider a coaxial cable with a central conducting wire (r=1mm) surrounded by an outer coaxial conducting sheath
4 answers
asked by
JuanPro
786 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
1,867 views
How many protons are needed to produce a total charge of 2.5*10^-15 C?
4 answers
asked by
Matt
1,460 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
3,772 views
An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A.
4 answers
asked by
J
2,651 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
917 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
3,257 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
4,540 views
Two parallel plates separated by a distance of 2.0 x 10^-2 meter are charged to a potential difference of 1.0 x 10^2 volts.
4 answers
asked by
kingg
2,187 views
An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?
6 answers
asked by
a
4,568 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
3,161 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
3,767 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
1,880 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
1,329 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
2,099 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
4,140 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
3,931 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
287 views
An insulating solid sphere of radius a = 0.5 m. If the sphere carries a total positive charge of 15 nC, calculate the magnitude
5 answers
asked by
johnny vrl
1,229 views
A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field
4 answers
asked by
JOSE
2,521 views
How strong an electric field is needed to accelerate electrons in a TV tube from rest to one-tenth the speed of light in a
4 answers
asked by
Debra
3,436 views
What might be the mass of a positive ion that is moving 1x10^7m/s and is bent into a circular path of radius 1.55m by a magnetic
5 answers
asked by
NATALIA
1,319 views
A velocity selector consists of electric and magnetic fields described by the expressions vector E = E k hat bold and vector B =
4 answers
asked by
Suhani
1,520 views
How close must two electrons be if the electric force between them is equal to the weight of either at the earth's surface?
5 answers
asked by
Niraj
3,782 views
In a certain region of space the electric potential is V= 5x-3x^2y+2yz^2. Find the expressions for the x,y,z compenents of the
4 answers
asked by
Jessica
2,132 views
Two identical charges repel each other with a force of 10-5 N when they are 20 cm apart.
a.) What is the force on each when they
5 answers
asked by
Mel
2,975 views
Consider three charges q1 = 6.0 µC, q2 = 1.8 µC, and q3 = -2.8 µC, arranged as shown below.
Q1 is positive and is 3 cm away
4 answers
asked by
wendlen
3,886 views
Calculate the speed of ions that pass undeflected through crossed electric and magnetic field for which E= 7.7kV/m and B= 0.14T.
4 answers
asked by
Anonymous
1,721 views
A communications satellite transmits a radio wave at a frequency of 5 • 109 Hz. What is the signal’s wavelength? Assume the
7 answers
asked by
LeXi;)
5,232 views
An insulated copper wire is wrapped around an iron nail. The resulting coil of wire consists of 240 turns of wire that cover 1.8
5 answers
asked by
physics im dying
3,567 views
A constant magnetic field passes through a single rectangular loop whose dimensions are 0.35 m x 0.55 m. The magnetic field has
4 answers
asked by
Mary
3,467 views
The electrons that produce the picture in a TV set are accelerated by a very large electric force as they pass through a small
5 answers
asked by
Faria
1,428 views
An electric dipole consists of 2.0 g spheres charged to 5.0 nC (positive and negative) at the ends of a 12 cm long massless rod.
4 answers
asked by
cha
2,553 views
The physics of an electron falling through a potential difference.
How much kinetic energy will an electron gain (joules) if it
4 answers
asked by
aly
1,612 views
In an experiment, I drew two small electrodes on a piece of carbon paper then a large electrode around the perimeter of the
4 answers
asked by
Ramesh
889 views
A particle of mass 7.7 × 10-8 kg and charge +11 μC is traveling due east. It enters perpendicularly a magnetic field whose
4 answers
asked by
JJ
1,980 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
2,312 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
1,489 views
Consider a wire of length L = 0.30 m that runs north-south on a horizontal surface. There is a current of I = 0.50 A flowing
4 answers
asked by
anip
4,688 views
a) Find the force on a straight conductor of length 0.30m carrying a current of 5.0A in the direction, where the field is T.
i.
4 answers
asked by
fati
5,467 views
A 2.00 cm x 2.00 cm square loop of wire with resistance 1.30×10^−2 Ohms is parallel to a long straight wire. The near edge of
4 answers
asked by
Manda
1,708 views
Three electrons form an equilateral triangle 1.00 nm on each side. A proton is at the center of the triangle.What is the
4 answers
asked by
Spencer
3,380 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
3,336 views
two charged particles are projected into a magnetic field that is perpendicular to their velocities. if the particles are
4 answers
asked by
tina
4,609 views
Capacitance is directly proportional to the surface of the plates. What is total plate area, in square inches, of a capacitor
4 answers
asked by
Luke
653 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
1,243 views
What creates a magnetic field?
A. charged particles that do not move B. moving electric charges C. gravity D. an isolated
10 answers
asked by
sid
2,479 views
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