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djyliett [7]
3 years ago
12

How are electromagnets made and how do they work?

Physics
1 answer:
frez [133]3 years ago
8 0
Electromagnets

When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet. A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply.
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In an ideal gas, collisions between molecules
chubhunter [2.5K]

Answer:

IDHHHHH

Explanation:

vfdvbggggggggggrhhhhhttttttfdsgt

5 0
3 years ago
Ions are unequally distributed across the plasma membrane of all cells. This ion distribution creates an electrical potential di
nekit [7.7K]

Answer: Resting Membrane Potential

Explanation:

The <u>resting membrane potential</u> refers to the difference in voltage between the inside and outside of the cell membrane when the cell is at physiological rest. It should be noted that <u>the cell membrane is a selective semipermeable barrier, which only allows the transit through it of certain molecules and prevents the transit of others. </u>

This selectivity causes an uneven distribution of charged particles (ions), as the membrane only accepts some types of ions.

Now, in the case of neurons, which are electrically excitable nerve cells; the transport of electrical signals is due to these changes in the permeability and asymmetric distribution of ions (mainly sodium and potassium) when the neuron is not excited (at rest).

4 0
3 years ago
Object A and Object B have the same volume of 10 cm³. Object A has a mass of 20 grams. Object B has a mass of 50 grams. Which ob
aniked [119]

Answer:

Object B has greater density

desity A=20/10=2 g cm^-3 . density B=50/10=5 g cm^-3

the object that has greater mass has the greater density because the volume of the those two objects are same

3 0
3 years ago
Which of the Moon’s positions will cause the highest or spring tides?
Bess [88]

The correct answer is A and C

During a Spring Tide, it will be horizontal, and a Neap tide is vertical

Brainliest plz!


8 0
3 years ago
Read 2 more answers
In a recent year, wind machines in a country generated 183.1 billion kWh of electricity, enough to serve over 17 million househo
Neko [114]

Answer:

The right answer is "4.4%".

Explanation:

Given:

Generated electricity,

= 183.1 billion kWh

Total electricity production,

= 4098 billion kWh

Now,

The wind energy percentage will be:

= \frac{183.1}{4098}\times 100

= 0.0446\times 100

= 4.4 %

5 0
3 years ago
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