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DIA [1.3K]
3 years ago
5

Good evening, I am taking an Algebra class for the first time after 50 years, and can not remember how to find the point-slope f

orm and the slope-intersect form of a line for the following problem. M=-1/5,P(10,4)
Any assistance would be greatly appreciated.
Mathematics
1 answer:
Olin [163]3 years ago
8 0
m=-1/5p x 10.4
m=-1/5p x 52/5
m=-52/25p

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A transformer increases the input voltage from 12V to 12,000V. What is the ratio of the number of wire turns on the primary coil
erma4kov [3.2K]

Answer:

\frac{n_p}{n_s}=\frac{1}{1000}

Step-by-step explanation:

Given voltage of primary coil is V_p=12V

And voltage of secondary coil is V_s=12,000V

A transformer is a device that contains primary and secondary coil. These coils are mounted on soft iron. The change in voltage depends upon the number of turns of primary coil (n_p) and secondary coil (n_s).

Following equation represents the relation between them.

\frac{V_s}{V_p} =\frac{n_s}{n_p}\\\\\frac{12,000}{12}=\frac{n_s}{n_p}\\\\1000=\frac{n_s}{n_p}

Then, ratio of the number of wire turns on the primary coil to the number of turns on the secondary coil is

\frac{n_p}{n_s}=\frac{1}{1000}

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