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Ludmilka [50]
3 years ago
7

What is a conservation law? What is the basic approach taken when using a conservation law?

Physics
1 answer:
Burka [1]3 years ago
4 0
A conservation law is law on a certain measurable property that is said to not change as the system undergo changes over a certain time. These laws include, conservation of mass, energy and momentum. The basic approach for these laws is to make balances and make sure the flow in is equal to what is going out the system.<span />
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The electricity received at an electrical substation has a potential difference of 20,000 V. What should the ratio of the turns
iren2701 [21]

The turn ratio of the transformer is 40.

<h3 />

<h3>What is a transformer?</h3>

A transformer is an electrical device that is used to step up or step down voltage.

The formula for calculating the turns ratio of a transformer is given below.

<h3> Formula</h3>
  • a = V/v.......... Equation 1

Where:

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From the question,

Given:

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Substitute the values above into equation 1

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Hence, The turn ratio of the transformer is 40.

Learn more about transformers here: brainly.com/question/6450076

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2 years ago
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If Fg=mg solve for g
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Source https://www.physicsforums.com/threads/fg-mg-questioned.336776/

Explanation:

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