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Delicious77 [7]
3 years ago
12

A 10 m long high tension power line carries a current of 20 A perpendicular to Earth's magnetic field of 5.5 x10⁻⁵ T. What is th

e magnetic force experienced by the power line? ______ N *
Physics
1 answer:
den301095 [7]3 years ago
7 0

Answer:

Explanation:

Given that,

The length of tension wire is 10m

L = 10m

It caries a current of 10A

I = 10A

The current is perpendicular to the magnetic field

B = 5.5 × x10⁻⁵ T.

Then, θ = 90°

The magnetic force that act on the line is?

F = i(L × B)

L × B = LB Sinθ

Where

I is the current

L is the length of the wire

B is the magnetic field

θ is the angle between the field and the direction of the length.

Then,

F = I × L × B × Sinθ

F = 10 × 10 × 5.5 × x10⁻⁵ × Sin 90

F = 5.5 × x10⁻³ N

Then, the magnetic force experience on the line is 5.5 × x10⁻³N

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