BIOLOGY HIGH SCHOOL

Which factor has the least effect on the strength of an electromagnet? A. The length of the connecting wires
B. The number of coils of wire.
C. The material of the core.
D. The strength of the battery
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Answers

Answer 1
Answer:

The length of the connecting wire has the least effect on the strength of an electromagnet.

What factors influence the strength of an electromagnet?

  • An electromagnet is a type of magnet where an electric current creates the magnetic field. The wire that makes up an electromagnet is typically twisted into a coil.
  • A magnetic field is produced by a current flowing through the wire and is concentrated in the hole, designating the centre of the coil.
  • The type of core material, the strength of the current flowing through the core, the number of wire turns on the core, and the size and form of the core are all factors that determine an electromagnet's strength.
  • Stronger magnetic fields can be created by using alloys like alnico, which is an alloy of aluminium, nickel, and cobalt.

The strength of the electromagnet's magnetic field increases when:

(a) the current increases

(b) the number of turns increases

(c) the wire is wound so that the length of the electromagnet is reduced

(d) Soft iron core inserted into magnetic coil

To learn more about electromagnets, refer to:

brainly.com/question/12555869

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Answer 2
Answer:

Answer:

The answer is A. The length of connecting wires.

Explanation:

I took the quiz.

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In which part of the nephron are sodium and chloride ions actively reabsorbed?A.
Glomerulus

B. Loop of Henle

C. Bowman's capsule

Answers

Answer:

The correct answer is option C. loop of Henle.

Explanation:

The loop of Henle is the part of a nephron in the kidney, that starts from the proximal convoluted tubule or PCT to the distal convoluted tubule DCT. The major role of the loop of Henle is to build a concentration gradient in the kidney.

Sodium (Na+), chloride (Cl−) and potassium (K+) ions are reabsorbed by secondary active transport from the urine by a Na-K-Cl co-transporter. The electrical gradient and concentration gradient causes more reabsorption of calcium (Ca2+), magnesium (Mg2+) and Na+.

Thus, the correct answer is option C.
Hey there! Here is my answer.

B. Loop Henle

Reason: Well, let's keep it short and sweet, it ascends, also meaning to rise, go up, or increase in size!

Hope this helped!

John wants to cook some macaroni and cheese, so he put a pot of water on to boil. However, John notices that it is taking a long time for his water to boil. In order for water to change from a liquid to a gas it must take on a large amounts of heat. Why?

Answers

Answer:

Answer is D. Water has high specific heat.

1 calorie/gram °C or 4.186 joule/gram °C is the specific heat of water, which is high as compared to any other common substance. The high specific heat of water due hydrogen bonds present between water molecules. In order to increase temperature of water, this bond needs to be broken down. To break many hydrogen bonds, a larger amount of energy is required. when all the bonds are broken water is changed from liquid to gas( water vapor).

Explanation:

Your welcome

Choose the correct answer. -lactose is Glcα1-4Glc -maltose is Glcα1-4Glc -sucrose is Glcα1-2Glc -cellobiose is Galβ1-4Glc

Answers

The answer is lactose is Glcα1-4Glc.

Lactose is a disaccharide sugar derived from galactose (Glca) and glucose (Glc) which form a β-1-4 glycosidic linkage (Glca1-4Glc).

Amoebas are unicellular organisms, while human beings are multi-cellular and the most intelligent of organisms. However, both are classified as eukaryotes. How will you justify this reasoning?Select one of the options below as your answer:

A.Though unicellular, amoebas have all the necessary cell organelles and a well-defined nucleus, therefore fulfilling the characteristics of eukaryotes.
B.Though unicellular, amoebas have a nucleoid and no cell organelles, therefore fulfilling the characteristics of eukaryotes.
C.Though unicellular, amoebas have a nucleolu

Answers

I'm totally sure that this one is correct:
A. Though unicellular, amoebas have all the necessary cell organelles and a well-defined nucleus, therefore fulfilling the characteristics of eukaryotes.

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