Dictionary » C » Charge

Charge

Charge

1. (Science: physics) a fundamental physical attribute of a particle, which characterises the particles electromagnetic interaction with other particles and with electric and magnetic fields.

2. Storing energy in a battery or electric capacitor by running a current through it, opposite of discharge. (It is possible to charge most capacitors in either direction, but batteries charge one way, and discharge in the other.)


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Electromagnetic fields generated by the human body

... a new watch. The minute hand bent in it. I have just discovered that a pocket knife that I have carried for years has recently acquired a manetic charge and the blade will pick up large paper clips. Are there documented cases of such things? Any credible studies?

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by GrowingAtrophy
Fri Jan 24, 2014 6:32 am
 
Forum: Human Biology
Topic: Electromagnetic fields generated by the human body
Replies: 36
Views: 136391

Re: Are carbohydrates hydrophobic?

... polar molecules, according to “Carbohydrates (1)”. Polar means that the molecules have "dipoles". This is due to the unbalanced charge of electrons in either part of the molecule. Remembering the principle that opposite charges are attracted, polar molecules have a weak attraction ...

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by HectorEnriquezC
Fri Aug 30, 2013 1:36 am
 
Forum: Molecular Biology
Topic: Are carbohydrates hydrophobic?
Replies: 7
Views: 12141

Re: Finding the net charge of amino acid

I have difficulty in evaluating the bands sspecially lower than 500 bp.

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by Richard02
Mon Jul 08, 2013 6:58 am
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 19
Views: 48527

Finding the net charge of amino acid

list the prononizable groups, find their pKa and define their charge at desired pH. Then just sum the charges and you get your result.

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by JackBean
Wed May 29, 2013 1:56 pm
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 19
Views: 48527

Finding the net charge of amino acid

please, i need help with this question. Estimate the net charge of a polypeptide chain at physiological pH 7.4 and at pH 5.0 Ala-Arg-Val-His-Asp-Gln

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by debbie4christ
Tue May 28, 2013 8:12 pm
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 19
Views: 48527
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