1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
never [62]
3 years ago
11

What is necessary to make a electromagnet

Physics
1 answer:
Alina [70]3 years ago
3 0

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It behaves exactly like a permanent magnet, like those magnets commonly used to stick items to our fridge.

To make a permanent magnet we need:

- One iron nail ( Could be fifteen centimeters (6 in) long )

- Three meters (10 ft) of copper wire

- One or more D-cell batteries

To make the electromagnet, we need to:

1. Wrap the Wire Around the Nail

2. Connect the Battery

And you are all set!

You might be interested in
The body system responsible for absorbing chemical energy from food is the-
fredd [130]
I think the answer is digestive system

Hope this helps... mark as Brainliest plz
8 0
4 years ago
Why is weight considered a force
saul85 [17]
Because if weight is being applied to an object, the object will have some sort of effect to counter react due to the weights primary objective.
4 0
4 years ago
How do you find the velocity after a collision
Evgen [1.6K]

Answer:

In a collision, the velocity change is always computed by subtracting the initial velocity value from the final velocity value. If an object is moving in one direction before a collision and rebounds or somehow changes direction, then its velocity after the collision has the opposite direction as before.

Explanation:

7 0
4 years ago
In any circuit, current is inversely proportional to:<br>potential<br>resistance<br>emf<br>voltage​
Licemer1 [7]

Answer:

This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r. In other words, if we increase the voltage, then the current will increase.

HOPE THIS HELPED!!!!!!!!!!!!!!XDDDDDD

3 0
3 years ago
he magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius
RideAnS [48]

Answer:

B = 4.323 T

Explanation:

We are given;

Inner radius; r_i = 0.7 m

Number of turns; N = 890 turns

Current; I = 17 KA = 17000 A

Formula for the magnetic field inside the toroid along the inner radius is given by;

B = (μ_o × N × I)/(2πr)

μ_o is vacuum of permeability with a constant value of 4π × 10^(-7) H/m

Plugging in the relevant values, we have;

B = (4π × 10^(-7) × 890 × 17000)/(2 × π × 0.7)

B = (2 × 10^(-7) × 890 × 17000)/(0.7)

B = 4.323 T

4 0
3 years ago
Other questions:
  • What dose fixed supply mean? Tell what a fixed supply curve looks like and heat it’s appearance means
    9·1 answer
  • Air enters a compressor with a pressure of 14.7 lbf/in.2 , a temperature of 70F, and a volumetric flow rate of 40 ft3 /s. Air ex
    14·1 answer
  • 4. The bar has cross-sectional area A and modulus of elasticity E. If an axial force F directed toward the right is applied at C
    6·1 answer
  • Find the acceleration of an 800-kg car that has a net force of 4,000 N acting upon it.
    10·1 answer
  • A ball is connected to a light spring suspended vertically. When pulled downward from its equilibrium position and released, the
    14·1 answer
  • If two people answer i will give brainliest to the first one that answers if right
    13·1 answer
  • Circuit has a single pathway for the electrons of flow.<br> series<br> parallel
    12·2 answers
  • Planets A and B have the same size, mass, and direction of travel, but planet
    8·1 answer
  • You and you friend are sitting on the floor in an empty room a distance, d, apart, and you both have an equal mass. Assume the o
    6·1 answer
  • 1. How long would the car in Sample Problem C take to come to a stop from its initial velocity of 20.0 m/s to the west? How far
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!