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Andrej [43]
3 years ago
13

A calcium bromide compound is represented by which formula?

Physics
2 answers:
Westkost [7]3 years ago
6 0

option D) CaBr2

hope this helps

ipn [44]3 years ago
4 0

Answer:

Calcium bromide is the name for compounds with the chemical formula CaBr2(H2O)x.

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When conduction electrons pass through a device with resistance, which describes their energy?
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Answer:

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Explanation:

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R= V/I

Where R= Resistance

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You have a 2m long wire which you will make into a thin coil with N loops to generate a magnetic field of 3mT when the current i
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Answer:

<em>radius of the loop =  7.9 mm</em>

<em>number of turns N ≅ 399 turns</em>

Explanation:

length of wire L= 2 m

field strength B = 3 mT = 0.003 T

current I = 12 A

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where n is the turn per unit length

vacuum permeability μ  = 4\pi *10^{-7}  T-m/A = 1.256 x 10^-6 T-m/A

imputing values, we have

0.003 = 1.256 x 10^−6 x n x 12

0.003 = 1.507 x 10^-5 x n

n = 199.07 turns per unit length

for a length of 2 m,

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since  there are approximately 399 turns formed by the 2 m length of wire, it means that each loop is formed by 2/399 = 0.005 m of the wire.

this length is also equal to the circumference of each loop

the circumference of each loop = 2\pi r

0.005 = 2 x 3.142 x r

r = 0.005/6.284 = 7.9*10^{-4} m = 0.0079 m =<em> 7.9 mm</em>

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3 years ago
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2 years ago
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