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3 years ago

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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3 years ago

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Magnesium is a highly flammable element which is easily combustible in the presence of oxygen:

NemiM [27]

4 atoms

Explanation:

On the product side, we expect to find 4 atoms of the product.

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According to Coulomb's law, the electrical force between two charged objects:A.is zero if they are opposite charges.B.increases

kondor19780726 [428]

Answer and explanation:

A correct option is an option (B).

The electrical force between two charges is given as,

$F=\frac{1}{4\pi\epsilon_0}\frac{q_1q_1}{r^2}$

The electrical force is directly proportional to the product of two charges. Thus Force will depend on two charges irrespective of their signs.

Option (A) is incorrect because if charges are opposite, the value of force will not be zero. It will be -ve.

Option (C) is incorrect because the force is directly proportional to the product of charges, it depends on the amount of charge.

Option (D) is also incorrect because the force in inversly proportional to the distance between two charges. Thus, if the distance between two charges is increased, the force between two charges will decrease.

Concllusion:

The correct option is option (B).

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1 year ago

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Answer:

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