1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
skelet666 [1.2K]
3 years ago
6

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It consists of a solenoid (

wire) wrapped around a bar of iron or other ferromagnetic material. A solenoid is a coil of wire with electric current flowing through it. This gives the coil north and south magnetic poles and a magnetic field. The magnetic field of the solenoid magnetizes the iron bar and creates a more powerful magnet. Electromagnets are used as components of other electrical devices as well as in industry to lift or move heavy objects. Which of these would not increase the strength of an electromagnet?
A) adding more coils of wire
B) using a larger magnetic core
C) increasing the current flowing through it
D) increasing the distance between the wire and the core
Physics
2 answers:
aleksklad [387]3 years ago
4 0

Answer:

B using a larger magnetic core

AfilCa [17]3 years ago
4 0

Answer: D

Explanation:

You might be interested in
Please Help!
LekaFEV [45]

The statement that best describes the production of energy in the Sun is nuclei with less mass combine to form nuclei with more mass in the Sun’s core and release energy.

<h3>How is energy produced in the sun?</h3>

Sun is a major source of renewable energy to the Earth. This energy serves various purposes by living organisms.

However, the energy is generated as a result of nuclear fusion, which is the combination of smaller particles to form a larger one.

Therefore, the statement that best describes the production of energy in the Sun is nuclei with less mass combine to form nuclei with more mass in the Sun’s core and release energy.

Learn more about energy at: brainly.com/question/1932868

#SPJ1

7 0
2 years ago
A 1.00 -kg object slides to the right on a surface having a coefficient of kinetic friction 0.250 (Fig. P8.62a). The object has
LekaFEV [45]

The distance D where the object comes to rest is 1.08.m.

<h3>What is the distance?</h3>
  • The separation of one thing from another in space; the distance or separation in space between two objects, points, lines, etc.; remoteness. The distance of seven miles cannot be accomplished in one hour of walking.
  • Learn how to use the Pythagorean theorem to get the separation between two points using the distance formula. The Pythagorean theorem can be rewritten as d==(((x 2-x 1)2+(y 2-y 1)2)
  • The distance between any two places is the length of the line segment separating them. By measuring the length of the line segment that connects the two points in coordinate geometry, the distance between them may be calculated.

(c) the distance D where the object comes to rest.

W_{total} =ΔKE ⇒ -0.25*1*9.8*D = 0-1/2*1*2.3^{2}

⇒D=\frac{0.5*2.3^{2} }{2.45}

⇒1.08.m

To learn more about distance, refer to:

brainly.com/question/4998732

#SPJ4

5 0
2 years ago
The water cycle was described in the Scriptures long before modern scientists understood it.
s344n2d4d5 [400]

Answer:

False

Explanation:

Low humidity is typically associated with cold temperatures since cold air holds less water compared to warm air. While it is possible for indoor humidity to be as low as 10%, most people generally find humidity levels of about 40 to 45 percent comfortable.

4 0
2 years ago
Read 2 more answers
How many cubic centimeters of area does 762 g of distilled water occupy?
BartSMP [9]
1 kg of water = 1 L = 1 dm³
762 g of water = 762 cm³
8 0
3 years ago
A tennis ball, 0.314 kg, is accelerated at a rate of 164 m/s2 when hit by a professional tennis player. What force does the play
SVEN [57.7K]
Newton's 2nd law of motion:

                    Force = (mass) x (acceleration)

                             = (0.314 kg) x (164 m/s²)

                             =    51.5 newtons

                         (about 11.6 pounds) .

Notice that the ball is only accelerating while it's in contact with the racket.
The instant the ball loses contact with the racket, it stops accelerating, and
sails off in a straight line at whatever speed it had when it left the strings.
4 0
3 years ago
Other questions:
  • An object is placed 18 cm in front of spherical mirror.if the image is formed at 4cm to the right of the mirror, calculate it's
    9·1 answer
  • A solid sphere of radius R contains a total charge Q distributed uniformly throughout its volume. Find the energy needed to asse
    9·1 answer
  • When the only force affecting an object is gravity,that object is in _______________
    15·1 answer
  • Distant galaxies appear to be much larger than those nearby. true or false
    13·1 answer
  • Two students suggest different functions for the battery plays a flashlight.
    5·2 answers
  • A potato gun is fired horizontally from a height of 1.5 meters with the potato launched at 25 m/s What is the time of flight of
    12·1 answer
  • A 2 kg car accelerated from 10 m's to 20 m/s using a force of 3000N. How quickly did it
    7·1 answer
  • He back window of this car contains a heating element.The heating element is part of an electrical circuit connected to the batt
    13·1 answer
  • You and your friend are having a discussion about weight. He claims that he weighs less on the on the 100th floor of a building
    5·1 answer
  • The diagram above shows a metal disk of weight 1.0 N resting on an index card that is balanced on top of a glass. What is the no
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!