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3 years ago

Name the device that helps you to maintain potential difference across a conductor

Biology

1 answer:

Nana76 [90]3 years ago

7 0

Answer:

battery

Explanation:

Any source of electricity, the battery, or the power supply is there to maintain the potential difference across a conductor.

To measure this difference we use VOLTMETER - Instrument for measuring potential differences, voltage differences. It is called a voltmeter as it allows the measurement of the potential difference or voltage that exists between two points belonging to an electrical circuit. The voltmeter, therefore, detects the voltage.

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Fresh raspberry contains 80% water. dried raspberry contains only 20% water. what weight of dried raspberry can you get from 36

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There 2 ways to solve this

1- Directly :

80% of water in the fresh berries è 20% of water in the dried berries

36 Ibs of the fresh berries è X Ibs of the dried berries

X = $\frac{36 * 20}{80}$ = 9 Ibs

2- If you do not understand the first method, the second one is more explicit:

First, we gonna calculate the weight of the berries without water (dehydrated):

36 * 80% = 28.8 Ibs (of water in the berries)

Then:

36 – 28.8 = 7.2 Ibs (of completely dehydrated berries)

Next, we gonna add 20% of water in the dehydrated berries:

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7.2 Ibs of dehydrated berries è 80%

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Name the device that helps you to maintain potential difference across a conductor​

Name the device that helps you to maintain potential difference across a conductor