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Electricity and Magnetism
Page 6
Questions (3,280)
A mechanic dropped a bolt he needed to repair a car motor. He decided to make a simple electromagnet to try to attract the metal
1 answer
asked by
Anonymous ;)
303 views
A student built a simple electromagnet with copper wire, an iron bolt, and a 1.5-volt battery. The electromagnet was able to
15 answers
asked by
Anonymous ;)
668 views
A student builds an electromagnet using a variable power source and 40 turns of wire. The electromagnet is used to pick up metal
1 answer
asked by
A
152 views
Mrs. Hankinson made the following electromagnet. What is the most likely explanation for the failed experiment?
a The battery is
1 answer
asked by
A
125 views
An electric current produces a(n):
a magnetic field b solenoid c insulator d magnet
1 answer
asked by
A
86 views
If current of 4.5A is used to find time taken for 5.5g of gold deposited. Given Au is 197 and 1 Faraday = 96500C
2 answers
asked by
Danny
69 views
i think its B.
Adding a _____________ to an electric circuit would increase the magnetic field around a wire. A. insulator B.
10 answers
asked by
matt
3,491 views
charge Q coulombs at time t seconds is given by the differential equation RdQ/dt+Q/C=0, where c is the capacitance in farafd and
4 answers
asked by
...
2,775 views
The rotating loop in an AC generator is a square 11.0 cm on a side. It is rotated at 60.0 Hz in a uniform field of 0.800 T.
4 answers
asked by
Charles
2,905 views
A spherical conductor has a radius of 14.0 cm and charge of 26.0 µC. Calculate the electric field and the electric potential
4 answers
asked by
confused
2,348 views
to use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field,
3 answers
asked by
angela
1,878 views
A very large loop of metal wire with radius 1 meter is driven with a linearly increasing current at a rate of 200 amps/second. A
2 answers
asked by
Sue
1,092 views
A long straight and thin wire has a charge Q per unit length. It is also carrying a current I. A point charge is moving with a
1 answer
asked by
John
714 views
If a series RLC circuit has R = 25 ohm, XL = 50 ohms, and XC = 30 ohms, what will be the total impedance?
4 answers
asked by
Adam
3,260 views
A conducting rod whose length is 25 cm is placed on a U-shaped metal wire that has a resistance R of 8 Ù. The wire and the rod
3 answers
asked by
Liz
1,448 views
the electrical resistance of a wire varies inversely as the square of the radius.if the resistance is 0.24ohms the radius is
4 answers
asked by
chinaemerem
1,505 views
Coulomb's Law is a mathematical representation of the electric force between two objects. When solving for electric force, a
1 answer
asked by
FF
325 views
ok so i keep getting one wrong on a 4 question test and failing so can someone tell me what im getting wrong
1. What causes an
6 answers
asked by
s
1,450 views
Tracy wants to make an electromagnet using a copper wire wrapped around an iron bar, as shown below.
To make the bar an
2 answers
asked by
wg
259 views
How does the Coulomb force affect charge interactions?(1 point)
Responses Like and opposite charges attract. Like and opposite
2 answers
asked by
blu
158 views
A particle beam is made up of many protons each with a kinetic energy of 3.25times 10-15J. A proton has a mass of 1.673times
4 answers
asked by
sam
4,887 views
In a circuit, the voltage, V, is given by the formula V = IZ, where I is the current and Z is the impedance. Both the current
4 answers
asked by
Anonymous
4,654 views
Two 2.4 cm diameter disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.3×10^5
3 answers
asked by
Emoni
1,431 views
There is a net passage of 4.5 1018 electrons by a point in a wire conductor in 0.26 s. What is the current in the wire?
2 answers
asked by
Eric
738 views
Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature
1 answer
asked by
adam h.
684 views
Moving a magnet inside a coil of wire will induce a voltage in the coil. How can the voltage in coil be increased?
move the
3 answers
asked by
lilman
1,882 views
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1 g of copper and asked to make a wire,
4 answers
asked by
Daniela
1,119 views
From the origin of an electric dipole, the charge is 25(micro coulomb) and after a distance of 62cm, the charge is -16(micro
2 answers
asked by
Anonymous
711 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
560 views
A charged particle is at the origin of coordinates. The
particle produces an electric field of 4 kN/C at the point with position
2 answers
asked by
Physics
1,165 views
A 1 mF, a 2 mF, and a 3 mF capacitor are connected in series, the combination being connected across a 9 volt battery. Which
4 answers
asked by
Liz
2,629 views
A proton traveling at a speed 1.0*106 m/s of enters the gap between the plates of a 2.0-cm-wide parallel-plate capacitor. The
4 answers
asked by
Anonymous
2,298 views
the image below shows electrical changes and the blue arrows represent force only consider charges to the right or left of each
1 answer
asked by
lol
117 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
In 1 to 2 sentences describe a setup of pith balls that have negative charges and are hanging from the same point
4 answers
asked by
the real BARNY THE DINO :)
661 views
A series RL circuit has two resistors and two inductors. The resistors dissipate 7 W and 12 W. The inductive powers are 15 VARs
3 answers
asked by
Zyro The monster
467 views
A bead with a mass of 0.085 g and a charge of 20 nC is free to slide on a vertical rod. At the base of the rod is a fixed 20 nC
4 answers
asked by
Alona
1,891 views
a capacitance of 6microfarad and another unknown capacitance are connected in series to a battery, if the potential difference
4 answers
asked by
iroh Munachimso
708 views
A parallel plate capacitor has a capacitance of 9.1 μF when filled with a dielectric. The area of each plate is 2.0 m2 and the
4 answers
asked by
Phil-- HELP NEEDED ASAP
2,349 views
What voltage is necessary to produce a current of 200 amperes through a resistance of 1 x 10^-3 ohms?
4 answers
asked by
Javier
2,121 views
Problem:
What is the resistance of a 3.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is
4 answers
asked by
Dom
5,764 views
At its normal operating speed, an electric fan motor draws only 10.9% of the current it draws when it just begins to turn the
4 answers
asked by
HELP !!!!
1,227 views
A Geiger counter detects radiation such as alpha particles by using the fact that the radiation ionizes the air along its path.
4 answers
asked by
Spencer
4,200 views
Two bulbs each of resistance 2.0 ohms are connected in parallel with a battery. Calculate the current flowing through any of the
5 answers
asked by
Vanessa
2,749 views
The heating elements of an electric toaster is typically made of nichrome wire
(an alloy of nickel and chromium). As current
4 answers
asked by
michelle
3,924 views
Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended
5 answers
asked by
John
2,738 views
A step-up transformer increases voltage 20 times. If the voltage of the primary coil is 1200V, what's the voltage of the
5 answers
asked by
L.A.M.B
1,634 views
An electric motor that rated at 5 horse power can produce _____ in equivalent work.
0.007 watts 5 watts 17.05 watts 3730 watts
5 answers
asked by
simon
2,609 views
Calculate the voltage required to accelerate a beam of protons initially at rest if they have a kinetic energy of 2.7 eV.
deltaV
4 answers
asked by
Lanise
755 views
is a wall a conductor?
11 answers
asked by
ashley --- HELP PLEASEE!!!
5,344 views
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