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drek231 [11]
3 years ago
10

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

to the number of turns on the secondary coil.
Mathematics
1 answer:
erma4kov [3.2K]3 years ago
5 0

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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Step-by-step explanation:

To make r a root, include (x-r) as a factor. (-1+1)(-1+1)(-1-6) is zero even though (-1-6) isn't.

(6+1)(6+1)(6-6) is zero.


Part 2 Answer:

Standard form: y = -x^4 + 12

Degree 4

left end goes down, right end goes down.

Step by step: apply the definitions of standard form, polynomial degree, and "end behavior". In other words, read the textbook.


Part 3: Answer: x = 3, x = 8

Step by step:

x^2-11x = -24

x^2-11x+24 = 0

(x-3)(x-8) = 0

x = 3 or x = 8


Part 4a Answer:

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remainder 1


Step by step:

2x^2 + x - 3

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- 3x + 12

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1


Part 4b answer:

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Step by step: you have to know exactly what you are doing. Refer to textbook or Wikipedia.


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write coefficients of dividend at left


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7 0
3 years ago
Factor -1/2out of -1/2x+6
Volgvan
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3 0
3 years ago
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Marina86 [1]

Answer :

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\\  \sf \: 3 +  \sqrt{5}  =  \frac{a}{b}   \\  \\   \qquad \: \tiny \sf{(where \:  \: a \:  \: and \:  \: b \:  \: are \:  \: integers \:  \: and \:  \: b \:  \neq \: 0)} \\

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Since, a, b and 3 are integers. So,

\\ \sf \:  \frac{p - 3b}{b}  \\  \\  \qquad \tiny \sf{ \: (is \:  \: a \:  \: rational \:  \: number \:) } \\

Here, it contradicts that √5 is an irrational number.

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7 0
3 years ago
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labwork [276]

Answer:

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Easy

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(27*19)/19-8/19

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(27*19-8)/19

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Have a wonderful day ask me if you have more questions about MATH that goes for anyone who needs math help

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3 years ago
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