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Electromagnetism
Page 5
Questions (3,925)
Maria makes an electromagnet shown in the figure below. The battery has a voltage of 6.0V, and she uses an iron nail. Which of
1 answer
asked by
social studies
108 views
What do you need to create an electromagnet?
1. Current, Coil, Conductor 2. Coulomb, Coil, Charge 3. Conductor, Coil, Core 4.
1 answer
asked by
asjdhwuei
71 views
does a compass use an electromagnet
4 answers
asked by
asjdhwuei
64 views
Which of these doesn't usually use an electromagnet?
1. A compass 2. A speaker 3. A school bell
1 answer
asked by
asjdhwuei
74 views
An electromagnet can be made stronger by...
1 answer
asked by
asjdhwuei
63 views
How can we increase the strength of an electromagnet?
1 answer
asked by
asjdhwuei
83 views
A current of 21A is passed
through a 20m length of two conducting wire placed 125cm apart. Determine the force of attraction
2 answers
asked anonymously
110 views
41. Calculate the force acting on
an electron of charge 1.6 x 10-19C placed in an electric field intensity 108Vm−1 . A. 1.6 x
2 answers
asked anonymously
69 views
Calculate the cut off wavelength for a TE2,1 wave propagating through a coaxial cable that have the following parametric values:
1 answer
asked by
Thapelo
116 views
There are 2 objects, one with a +2 charge and one with a -2 charge. If we increase the distance between the two objects, what
1 answer
asked by
Bella
70 views
which of the following statements about field lines is true?
a. field lines are always perpendicular to the surface of the object
4 answers
asked by
oyebodegoldencity
99 views
the attractive or repulsive interaction between two charged particles
1 answer
asked by
social studies
82 views
the region around an object that exerts a force on other charged objects
1 answer
asked by
social studies
111 views
the attractive or repulsive interaction between two charged particles
1 answer
asked by
social studies
60 views
Mrs. Hankinson made the following electromagnet. What is the most likely explanation for the failed experiment?
a The metallic
1 answer
asked by
social studies
114 views
How does the Coulomb force affect charge interactions?(1 point)
Responses Like and opposite charges repel. Like charges attract,
2 answers
asked anonymously
247 views
How could you increase the strength of your electromagnet? (Select all that apply)
a Decrease the current flowing through the
1 answer
asked by
social studies
71 views
What determines the direction of magnetic force acting on a moving charge? When is the magnitude of the magnetic force zero?
1 answer
asked by
oyebodegoldencity
72 views
Calculate the wavelength of light emitted when each of the following transactions occur in the hydrogen atom.what type of
1 answer
asked by
Bedieto Chiimbwe
135 views
You start with the electromagnet pictured. Name three ways you can increase the strength of this electromagnet.
1 answer
asked by
ok
96 views
Use the table of information about for electromagnets to answer the question
1 answer
asked by
Jo
66 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
4 answers
asked by
cr
910 views
Use the table of information about four electromagnets to answer the question.
Electromagnet Current Intensity Number of Turns in
10 answers
asked by
Lilly
534 views
Nobel laureate Richard Feynman (1918-1988) once said that if two persons stood at arm's length from each other and each person
3 answers
asked by
suhani
2,429 views
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
6 answers
asked by
boiiiii
941 views
A circular loop of wire with radius 0.100 m and resistance R = 5.00 Ω. The loop is placed in a magnetic field of strength B =
5 answers
asked by
Anon
1,414 views
A student holds two positively charged balloons near each other. She claims that magnetic forces exist between the balloons.
3 answers
asked by
Anonymous ;)
262 views
A rectangular coil 30cm long and 20cm wide has 250 turns. It rotates at the uniform rate of 3000 rev/minute about an axis
2 answers
asked anonymously
68 views
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
15 answers
asked by
Lilly
306 views
The force of repulsion between two like-charged particles will INCREASE if
* 1 point Captionless Image the strength of the charge
1 answer
asked by
Help The ELA Kid📃✏️😔
159 views
What happens if two small positively charged particles of equal strength are placed close to each other?
* 1 point Captionless
3 answers
asked by
Help The ELA Kid📃✏️😔
157 views
Which of these is NOT true about electromagnets?
* they are permanent increasing the number of coils makes them stronger they
1 answer
asked by
Help The ELA Kid📃✏️😔
66 views
Your class is designing electromagnets. Available materials include: various batteries, different sizes of iron nails, and a
2 answers
asked by
Help The ELA Kid📃✏️😔
122 views
While experimenting with electromagnets, students oriented two like you see in the diagram here. Predict what will happen and
3 answers
asked by
Help The ELA Kid📃✏️😔
132 views
A magnetic field is created by a charged particle that is
* 1 point balanced. motionless. moving. unbalanced.
1 answer
asked by
Help The ELA Kid📃✏️😔
69 views
Magnetism is a
* force. power. form of electricity. type of mass.
3 answers
asked by
Help The ELA Kid📃✏️😔
77 views
What is magnetism
1 answer
asked by
Fuad Faji
79 views
The greater the work function for a metal,
Question 14 options: A) the greater the speed of the ejected electron B) the smaller
1 answer
asked by
oyebodegoldencity
102 views
(a) An electron starts at rest and accelerates through an electric field established by a set of parallel plates with a
1 answer
asked by
oyebodegoldencity
111 views
Which of these would be LEAST useful if one is attempting to create a electromagnet?
A: distilled water B: battery C: coil of
1 answer
asked by
physics
49 views
How could you increase the strength of an electromagnet? (Select all that apply)
a Increase the number of coils b Increase the
1 answer
asked by
kali
92 views
How can you strengthen an electromagnet? **Choose all that apply.**
a decrease the number of wire coils b increase the number of
1 answer
asked by
kali
133 views
Magnetic fields run from ______________________ to ______________________.
a south, north b east, west c north, south d west,
1 answer
asked by
kali
103 views
Which property is unique to electromagnetic waves?
2 answers
asked by
Nat
216 views
A coulomb is a measure of----whereas an ampere is a measure of----. quanity and a measure of rate?
4 answers
asked by
Linda Emory
114 views
Electromagnetic induction occures when--- HOW?
4 answers
asked by
Linda Emory
71 views
When two charged particles are moving toward each other their velocities decrease until they eventually come to a stop. What
1 answer
asked by
Nancy Haymes
209 views
What happens when you rub an ebonite stick with a wool cloth?
7 answers
asked by
Linda Emory
113 views
Hal makes an electromagnet with a 9-volt battery, wire, and a steel rod. What is the function of electric current in his
4 answers
asked by
Hlo
316 views
The force of repulsion between two like-charged particles will INCREASE if...
the strength of the charge on both the particles is
6 answers
asked by
bobby brown
184 views
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