Physics, 09.11.2020 16:40 kevo2024

What is the force per meter of length on a straight wire carrying a 8.05 A current when perpendicular to a 0.82 T uniform magnetic field?

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Answer from: Serenitybella

The required magnitude of force per meter of wire is of 6.601 N/m.

Given data:

The magnitude of current in a wire is, I = 8.05 A.

The strength of magnetic field is, B = 0.82 T.

We known that, in a magnetic field there is always a force acting on a wire kept in the region. This force is known as magnetic force, and the expression for the magnetic force is given as,

$F = B \times I \times L \times sin \theta$

Now,

For the force per unit length, and current being perpendicular to magnetic field,

$\dfrac{F}{L} = B \times I \times sin90\\\\\dfrac{F}{L} = 0.82 \times 8.05 \times sin90\\\\\dfrac{F}{L} = 6.601 \;\rm N/m$

Thus, we can conclude that the required magnitude of force per meter of wire is of 6.601 N/m.

Learn more about the magnetic force here:

link

Answer from: kyliemorgan8623

6.601 N/m.

Explanation:

Generally, the force on a wire carrying current in a magnetic field can be determined by:

F = BIL Sinθ

where: F is the force, B is the value of the magnetic field, I is the value of current in the wire and θ is the angle between the direction of current and magnetic field.

For force per meter of length, we have;

$\frac{F}{L}$ = BI Sinθ

Given: I = 8.05 A, B = 0.82 T and θ = $90^{o}$ (since they are perpendicular).

Then;

$\frac{F}{L}$ = 0.82 x 8.05 x Sin $90^{o}$

= 6.601

= 6.601 N/m

the force per meter length is 6.601 N/m.

Answer from: Quest

answer would be letter choice (a), a ball resting on a shelf. would be another example of potential energy > stored energy > not moving.

a ball spinning on a finger > kinetic energy > moving energy

a ball rolling on the ground > kinetic energy > moving energy

a ball flying through the air > kinetic energy > moving energy

hope that : )

Answer from: Quest

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

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