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Electromagnetism
Page 9
Questions (3,771)
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
1,512 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
3,772 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
2,120 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
2,963 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
3,874 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
1,710 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;)
5,222 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
3,560 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
3,449 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
1,416 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
2,544 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
1,607 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
881 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
1,965 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
4,682 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
5,459 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
1,700 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
3,376 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
4,601 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
649 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
2,469 views
The area shown is the boundary of a magnetic field directed in the positive z direction. An electron with a velocity along the
x
4 answers
asked by
jayren
2,638 views
A positive charge of 1.5x10^-8 C experiences a force of 0.025 N to the left in an electric field. What are the magnitude and
4 answers
asked by
george
1,878 views
A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle:
4 answers
asked by
Daniel
1,634 views
A piece of wire with mass per unit length 88 g/m runs horizontally at right angles to a horizontal magnetic field. A 6.5A
4 answers
asked by
help
1,811 views
A uniform magnetic field points North; its magnitude is 1.5 T. A proton with kinetic energy 8.0x10–13 J (5.0 MeV) is moving
4 answers
asked by
Trace
2,555 views
A 2.0 mm diameter glass sphere has a charge of +1.0 nC. What speed does an electron need to
orbit the sphere 1.0 mm above the
3 answers
asked by
Anonymous
3,145 views
An electron is accelerated by a 4.7 kV potential difference. How strong a magnetic field must be experienced by the electron if
4 answers
asked by
Mara
2,432 views
The secondary coil consists of 20 loops and has an output voltage of 80 V. If the primary coil had 100 loops, what was the
4 answers
asked by
Hi
2,002 views
In 1909, Robert Millikan performed an experiment involving tiny, charged drops of oil. The drops were charged because they had
4 answers
asked by
Syeda
2,512 views
A sphere of radius r =5cm and volume charge density ρ=14μC/m^3 spins at ω=200rad/s
. What is the magnetic field at the center
4 answers
asked by
Stephen
742 views
Metal sphere 1 has a positive charge of 7.00nC . Metal sphere 2, which is twice the diameter of sphere 1, is initially
4 answers
asked by
Sven
3,672 views
The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled P,
3 answers
asked by
Sarah
3,046 views
How much work must be done to bring three electrons from a great distance apart to 1.0 * 10^(-10)m from one another (at the
4 answers
asked by
Jenish
2,601 views
Find the electric field due to an infinite plane of positive charges with uniform surface charge density sigma
4 answers
asked by
Fatima Gul
670 views
47. Induction is a process in which a moving ____ produces a(n) ____.
a. charge, current c. magnetic field, electric field b.
4 answers
asked by
John Ng
1,135 views
A proton with mass 1.67×10−27 kg and charge 1.60×10−19 C accelerates from rest in a uniform electric field of strength 500
6 answers
asked by
Jane
3,096 views
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in
4 answers
asked by
Ed some one please help
868 views
An aluminum ring of radius 5.00 cm and resistance 2.00 10-4 Ω is placed around the top of a long air-core solenoid with 997
4 answers
asked by
Kyle
3,197 views
Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are
4 answers
asked by
Terry
3,311 views
8. Electric field lines arising from two small charged particles P and Q.
Consider the following two statements: i.The charge on
4 answers
asked by
james
1,888 views
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T.
4 answers
asked by
sarah
1,386 views
If the magnitude of the electric field in air exceeds roughly 3 X10^6 N/C, the air breaks down and a spark forms. For a two-disk
4 answers
asked by
Brittney
4,258 views
Neutral metal sphere A, of mass 0.10kg, hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q is
4 answers
asked by
Alex
3,048 views
Three positive particles of equal charge +11.o micro C, are located at the corners of an equilateral triangle of sides 15.0cm.
3 answers
asked by
matt
1,719 views
An electron at rest of mass 9.11x10^−31 kg is accelerated through a potential difference of 350 V. It then enters some
4 answers
asked by
Fufu
887 views
A positive charge of 1.0 * 10 ^ (-5) C experiences a force of 0.20 N when located at a certain point.What is the electric field
4 answers
asked by
Susandarkwah23
2,336 views
Static charge can interfere with the production of plastic products by attracting dust and dirt. to reduce it, manufacturers
4 answers
asked by
S
1,568 views
If Faraday hd used a more powerful battery in his experiments with electromagnetic induction, what affect would this have had on
9 answers
asked by
Katie
4,795 views
In the figure: an electron is projected along the axis midway between the plates of a cathode-ray tube with an initial velocity
4 answers
asked by
renel
1,501 views
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