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s2008m [1.1K]
3 years ago
8

The generation of a magnetic field by an electric current is _____

Physics
2 answers:
lara [203]3 years ago
7 0

The generation of a magnetic field by an electric current is _electromagnetism_.

ANTONII [103]3 years ago
5 0

Answer: The correct answer is "electromagnetism".

Explanation:

Electromagnetism: it is an interaction of the electricity and the magnetism.

When the current flows in the conductor then the magnetic field lines are produces around the current carrying conductor. Here, the electric current generates magnetic field. The motion of the charges produces both electric field and the magnetic field.

This phenomenon was discovered by Oersted.

If the amount of current increases then the strength of the magnetic field will also get increase. The strength of the magnetic field depends on the amount of current flowing in the conductor.

Therefore, the generation of a magnetic field by an electric current is electromagnetism.

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What information do you think the temperatures of stars give us?
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Explanation:

One way of classifying stars is by their temperature .

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Star and planet formation

Star and planet composition

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The scientific method means that all theories are put to the test. By measuring or calculating the temperature, age and composition of other planets and stars the theories can be tested. If observed values of these parameters are not predicted by theories, then the theories are wrong and need to be revised or replaced.

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What is the specific heat of a material that has a mass of 5 grams and increases 125ºC when it receives 150J of heat?
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What is the elevation of point B?<br> What about F?
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Since I can only do this by observation, the elevation of F is approximately 850km and the elevation of B is 925km.

7 0
3 years ago
A steel piano wire, of length 1.150 m and mass 4.80 g is stretched under a tension of 580.0 N.
kaheart [24]

A steel piano wire, of length 1.150 m and mass of 4.80 g is stretched under a tension of 580.0 N.the speed of transverse waves on the wire would be  372.77 m/s

<h3>What is a sound wave?</h3>

It is a particular variety of mechanical waves made up of the disruption brought on by the movements of the energy. In an elastic medium like the air, a sound wave travels through compression and rarefaction.

For calculating the wave velocity of the sound waves generated from the piano can be calculated by the formula

V= √F/μ

where v is the wave velocity of the wave travel on the string

F is the tension in the string of piano

μ is the mass per unit length of the string

As given in question a steel piano wire, of length 1.150 m and mass of 4.80 g is stretched under a tension of 580.0 N.

The μ is the mass per unit length of the string would be

μ = 4.80/(1.150×1000)

μ = 0.0041739 kg/m

By substituting the respective values of the tension on the string and the density(mass per unit length) in the above formula of the wave velocity

V= √F/μ

V=√(580/0.0041739)

V =  372.77 m/s

Thus,  the speed of transverse waves on the wire comes out to be  372.77 m/s

Learn more about sound waves from here

brainly.com/question/11797560

#SPJ1

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