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If the direction of a magnetic field around a vertical electrical wire is counter clockwise, what direction is the electrical current moving?

From the top of the wire to the bottom
From the bottom of the wire to the top
Counter clockwise
Clockwise

Respuesta :

skyluke89

Direction of the current:

From the bottom of the wire to the top

Explanation:

The magnetic field produced by a current-carrying wire forms concentric circles around the wire; its magnitude is given by

[tex]B=\frac{\mu_0 I}{2\pi r}[/tex]

whrere

[tex]\mu_0[/tex] is the vacuum permeability

I is the current in the wire

r is the distance from the wire

The direction of the magnetic field produced by a current-carrying wire can be found by using the right-hand rule:

- The thumb of the right hand is placed in the same direction as the current

- The other fingers, wrapped around the thumb, give the direction of the magnetic field

In this case, the wire is vertical and the magnetic field is counter clockwise (looking from the top), therefore we need to put the thumb from the bottom to the top in order to get the same direction for the field: therefore, the direction of the current is

From the bottom of the wire to the top

Learn more about magnetic fields:

brainly.com/question/3874443

brainly.com/question/4240735

#LearnwithBrainly

The direction of the current is from the bottom of the wire to the top

Current and magnetic field:

The direction of this magnetic field is in such a way that it wraps the wire or say in concentric circles, one above another around the wire

To find the direction of the magnetic field we put the thumb of the right hand in the same direction as the current and curl our fingers. the curling of figures gives the direction of the magnetic field.

Now to find the direction of the current, we do the exact opposite of the above. So we have to curl our fingers with our fist in such a way that it matches the direction of the given magnetic field. The direction of the thumb gives the direction of the current.

In the given case, the magnetic field is counter-clockwise (from the top of the wire), so if we point our thumb upwards, the curled fingers are counter-clockwise as viewed from above.

So the direction of current must be from the bottom of the wire to the top

Learn more about magnetic fields:

https://brainly.com/question/7802337?referrer=searchResults

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