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Electromagnetism
Page 10
Questions (3,771)
The physics of moving a small charge through a potential difference.
How much work is needed to move a -8.0 ìC charge from
4 answers
asked by
aly
1,612 views
What is the magnitude of the force per meter of length on a straight wire carrying an 8.50 -A current when perpendicular to a
4 answers
asked by
Samantha
2,262 views
150 pJ of energy is stored in a 1.0 cm times 1.0 cm times 1.0 cm region of uniform electric field.
What is the electric field
4 answers
asked by
Emoni
3,072 views
An electron enters a parallel plate apparatus 10.0cm long and 2.0cm wide, moving horizontally
at 8.0 × 10^7 m/s. (top plate is
4 answers
asked by
Lauren
2,686 views
Two identical spheres, A and B, carry charges of +6 microcoulombs and -2 microcoulombs. If these spheres touch, what will be the
4 answers
asked by
Priscilla
3,719 views
What is the potential difference required to accelerate a deuteron of mass 3.3x10^27kg and charges 1.6x10^-19C from rest to a
6 answers
asked by
Lucy
1,559 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
4 answers
asked by
jenish
4,487 views
From the previous data, what electric field (in ) over the gradient zone of would be required to compensate the electron
4 answers
asked by
Matthews
1,004 views
The circuit shown below is in a uniform magnetic field that is into the page and is decreasing in magnitude at the rate of 150
4 answers
asked by
Anonymous
933 views
From the surface of a cylindrical wire of radius R=1 cm carrying a current I=1 mA an electron escapes with velocity v0=30 m/s
3 answers
asked by
Gk
410 views
Sphere A, with a charge of +64 C, is positioned at the origin. A second sphere, B, with a charge of -16 C, is placed at
3 answers
asked by
Hazel
1,596 views
A circular loop of flexible iron wire has an initial circumference of 168cm , but its circumference is decreasing at a constant
3 answers
asked by
sarah
2,826 views
Changing the current changes the ___ of an electromagnet.
Choices are: A. strength B. direction C. charge D. both a and b
4 answers
asked by
Samantha
1,301 views
3.A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 3 cm.
a) Show that the
4 answers
asked by
Anonymous
2,340 views
How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 28.0 in diameter to
3 answers
asked by
How many excess electrons must be distributed unif
880 views
A metal shpere with ane excess of 11 electrons touches an identical metal sphere with an excess of 15 electrons. After the
9 answers
asked by
Anonymous
2,746 views
An electron (mass m = 9.11 * 10^-31 kg) is accelerated in a uniform field vector E ( E =1.45 * 10^4 N/C) between two parallel
4 answers
asked by
jenish
2,098 views
A force of 0.460 N exists between a positive charge of 8.50 10-6 C and a negative charge of -3.22 10-6 C. What distance
4 answers
asked by
Jonathan
775 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
1,994 views
A 2.0-microF capacitor is charged to 50V and then connected in parallel (positive to positive plate) with a 4.0-microF capacitor
4 answers
asked by
gOOD eVE
3,188 views
Two particles are fixed to an x axis: particle 1 of charge q1 = 1.73 ¡Ñ 10-8 C at x = 30.0 cm and particle 2 of charge q2 =
2 answers
asked by
Anonymous
1,079 views
Calculate the frequency of an electron traveling at 1.85X10^7 m/s.
4 answers
asked by
Tiffie
3,033 views
As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over
4 answers
asked by
KTM
1,880 views
The magnitude of the magnetic field produced by a long straight current-carrying wire is:
proportional to both the current in the
4 answers
asked by
lilly
2,002 views
A dipole with a positive charge at
x=0.0 nm, y=10.0 nm and a negative charge at x=0.0 nm, y = -10.0 nm. If the charge have a
3 answers
asked by
Banu
640 views
Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries
4 answers
asked by
Khusi
610 views
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in
4 answers
asked by
Kathy
1,157 views
Calculate the magnitude of the magnetic field at a point 43.6 cm from a long, thin conductor carrying a current of 1.24 A. The
4 answers
asked by
Like a Boss
445 views
An electromagnetic wave strikes a 3.00-cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is
4 answers
asked by
Tony
3,168 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
4 answers
asked by
Stefan
1,633 views
A circular coil of 30 turns and radius 7 cm is placed with its plane oriented at 90 degrees to a magnetic field of 0.1 T. the
3 answers
asked by
edward
1,524 views
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 4000 N/C and 20
4 answers
asked by
Lanise
1,182 views
when a charged rod is brougth closer to a stream of ethanol it bends?
explain why?
4 answers
asked by
shennay
923 views
If 1000 electrons are removed from an isolated neutral metal sphere, calculate the charge acquired by sphere
3 answers
asked by
Abdulla Fadhl
322 views
Two point charges 5uc and 3uc are fixed 4cm apart . calculate the distance in between them at which the resultant is zero
4 answers
asked by
lucy
1,222 views
An electron of charge -e circulates around a helium nucleus of charge +2.which particle exerts a larger force on other?
4 answers
asked by
Dania
878 views
Given a plastic rod and fur, how would you charge the electroscope
3 answers
asked by
Mary
1,377 views
An electron is placed in an electric field of 12 N/C to the right. What is the resulting force on the electron?
I just don't see
3 answers
asked by
anonymous
701 views
1. A cylinder has a charge Q placed on it; the charge is distributed uniformly throughout the cylinder. If we examine the
5 answers
asked by
Mit
870 views
a student made an electromagnet using a battery electrical tape and metal wire. she wanted to see what the effect would be if
6 answers
asked by
machile
2,270 views
what is the maximum torque on a rectangular coil 5 cm x 12 cm and with 600 turns when carrying a current of 0.0700A in a uniform
4 answers
asked by
alan
2,106 views
A rectangular wire loop with current i=200mA, width W=20cm and length L=50cm is placed in a uniform magnetic field B=7T as
3 answers
asked by
JuanPro
759 views
In a television tube, the electron travels from an electron gun to the screen 0.45m away in 6.0×10exponent-9seconds. If the
3 answers
asked by
jen
922 views
Light travels at a speed of 3.00 times 10^10 cm/s. What is the speed of light in kilometers/hour?
4 answers
asked by
Kelsi
1,656 views
After the velocity selector, a mass spectrometer allows the charged particle to enter a region of magnetic field only, where it
4 answers
asked by
Ramana
604 views
Excess electrons are placed on a small lead sphere with mass 8grams so that its net charge is -3.20*10^9C.
a) Find the number of
3 answers
asked by
Rickson
2,031 views
What is the wavelength of an electron moving at 2.60% of the speed of light?
1 m
3 answers
asked by
Amelia
676 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
3 answers
asked by
Patrick
506 views
a current can be induced in a closed circuit without the use of a battery or an electrical power supply by moving the circuit
3 answers
asked by
Anonymous
1,232 views
What mass of protons would be required to just neutralize the charge of 2.7 g of electrons?
4 answers
asked by
blahh
1,454 views
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