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Kamila [148]
3 years ago
11

Electromagnetism consists of what two processes?

Physics
2 answers:
kherson [118]3 years ago
5 0

Answer: it’s A and B

Explanation: everyone else on this post was giving you the wrong answer.

3241004551 [841]3 years ago
4 0

Answer:

A: An electric current produces a magnetic field, and B. A moving magnet produces an electric current

Explanation:

I know I'm late and you've probably already done this. Hope you had a Merry Christmas and a Happy New Year!

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a transmission-line cable, of length 3 km, consists of 19 strands of identical copper conductors, each 1.5 mm in diameter. becau
Ivan

the resistance of the cable is 582.9 ohms

we are given the length of the cable which is  3 km,  of  1.5 mm in, the diameter  and resistivity of copper which is 1.72 m

The formula  we are referring to for calculating the resistance of the  cable is

R = ρl/A.

As there are 19 strands of copper conductors, so the resistance will be

R = 19( ρl/A)

Here  ρ is the resisitivity =  1.72 , l is the length  = 3(1+0.05)*10³3= 3150 m

A=pie/4(1.5 x 10⁻³)^2 =1.766 x 10⁻⁶ =1.766 x 10^-6

Substituting the values in the formula  we  get

R = 19 ( 1.72*3150 )/1.766 x 10⁻⁶

 = 582.9 ohm

To know more about resistance refer to the linkhttps://brainly.com/question/14547003?referrer=searchResults.

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