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Tasya [4]
3 years ago
12

What current is needed in the solenoid's wires?

Physics
1 answer:
marta [7]3 years ago
5 0
Using Ampere's Law, the magnetic field produced inside this solenoid is given by
B = uo N I / h
where uo is the vacuum permeability, N is the number of turns in the solenoid and h is the length of the solenoid. Earth's magnetic field is around 50 microteslas in North America thus the current needed in the solenoid is
I = B h / (uo N) = (50 E-6 ) (4) / ((4 pi E-7)(6000) ) = 0.026 A
I = 26 mA
So you need a current of around 26 mA.
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List between six and eight student organizations either offered by your school or offered
melamori03 [73]

Examples of student-led organizations are:

  • Academic and educational organizations

  • Community service organization

  • Media and publications organizations

  • Political or multicultural organizations

  • Recreation and sports organizations

  • Student government organizations

  • Religious and Spiritual organizations

The benefits of getting involved in any of these are many. They include but are not limited to:

  • It helps one to learn more about oneself

  • It is a great place to develop leadership skills

  • It offers the opportunity for people to build life-long networks

  • Skills learned in class can be practiced and honed in these organizations

  • Soft skills such as team-intellignce, and social intelligence can be learned in these organizations

  • Valuable experiences that count in real-life jobs can be learned here

  • It is also an opportunity to give back to the community and to have fun

Learn more about student organizations in the link below:

8 0
2 years ago
4. A spring is stretched 0.5 m from equilibrium. The force constant (k) of the
makkiz [27]

Answer:

31.25

Explanation:

The formula for the potential energy of a spring is \frac{1}{2}kx^2, where x is the distance in meters the spring is stretched. Plugging in the numbers that you are given, you get \frac{1}{2}\cdot 250\cdot 0.25=31.25. Hope this helps!

8 0
3 years ago
Read 2 more answers
1.) Rn-222 decays from 400 grams to 6.25 grams in 240 minutes. How long is one “half-life.
KiRa [710]

Answer:

40

Explanation:

7 0
3 years ago
A 10 ohms, a 7 ohms and a 14 ohms resistor are connected in series with a 24 V battery. Calculate the equivalent resistance. Ans
Aloiza [94]

Answer:

31ohms

Explanation:

in a series u add all the ohms together

5 0
2 years ago
At the top of a hill a roller coaster has gravitational potential energy due to its position. What happend to this potential ene
Anuta_ua [19.1K]

As the roller coaster speeds up on the way down the hill, the potential energy of  roller coaster will be converted to kinetic energy.

<h3>What is Conservation of Energy ?</h3>

Conservation of energy state that energy is neither created nor destroy, they can only be transformed from one form to another. Energy of and object can transform from Potential energy to kinetic energy and vice versa

Given that at the top of a hill a roller coaster has gravitational potential energy due to its position. What will happen to this potential energy as the roller coaster speeds up on the way down the hill is that the potential energy to the roller coaster will start decreasing while the kinetic energy will start to increase.

The total energy of the roller coaster will be constant because of conservation of energy. As the roller coaster speeds up on the way down the hill, the potential energy will eventually reduce to zero where the total energy of the as the roller coaster will be equal to maximum kinetic energy.

Therefore, as the roller coaster speeds up on the way down the hill, the potential energy of  roller coaster will be converted to kinetic energy.

Learn more about Energy here: brainly.com/question/25959744

#SPJ1

3 0
2 years ago
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