Physics, 03.11.2020 16:20 recklessunreached

Two very long solenoids have the same length, but solenoid A has 18 times the number of turns, 1/5 the radius, and 7 times the current of solenoid B. Calculate the ratio of the magnetic field inside of A to that inside B.

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Answer from: campbelldean

B=126B'

Explanation:

Let n and n' be the number of turns in solenoid A and B. r and r' be the radius of solenoid A and B. I and I' be current in solenoid A and B.

ATQ,

n = 18 n'

r = (1/5)r'

I=7I'

The magnetic field inside the solenoid is given by :

$B=\mu_o nI$

So,

$\dfrac{B}{B'}=\dfrac{nI}{n'I'}$

B and B' is the magnetic field in solenoid A and B.

$\dfrac{B}{B'}=\dfrac{18n'\times 7I'}{n'I'}\\\\\dfrac{B}{B'}=126\\\\B=126B'$

So, the magnetic field inside the solenoid A is 126 times the magnetc field inside the solenoid B.

Answer from: Quest

Acetic acid /əˈsiːtɪk/, systematically named ethanoic acid /ˌɛθəˈnoʊɪk/, is a colourless liquid organic compound with the chemical formula ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called glacial acetic acid. vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to polyvinyl acetate and cellulose acetate. it is classified as a weak acid since it only partially dissociates in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7 3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366 chemblchembl539 chemspider171 drugbankdb03166 echa infocard100.000.528ec number200-580-7e numbere260 (preservatives)gmelin reference1380iuphar/bps1058keggd00010 meshacetic+acidpubchem cid176rtecs numberaf1225000uniiq40q9n063p un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4) key: qtbsbxvteameqo-uhfffaoysa-n smilescc(o)=o

Answer from: Quest

the unit of the measure = $\frac{j}{kgk}$

explanation:

the property that is quantified by the energy needed per of material to raise the temperature by one.

si unit of energy = joule (j)

si unit of temperature = kelvin (k)

si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is $\frac{j}{kgk}$

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