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I am Lyosha [343]
3 years ago
9

When asked how to create an electromagnet, the best answer would be, "You can create an electromagnet by

Physics
2 answers:
irinina [24]3 years ago
5 0

The correct answer is D. wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

Explanation

An electromagnet is a non permanent magnet that is created with an electric current .When current flows through a wire it induces  a magnetic field around the wire. When the wire is wrapped around in a coil, the magnetic field that is induced is concentrated in the center of the coil, creating a north and south pole.   The field is that of a solenoid.  

Electromagnets are usually made by wrapping insulated coil of wire around a ferromagnetic metal. This focuses the electromagnetic field and creates a magnet as long as there is current running trough the insulated wire.

The correct answer is D. wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

Norma-Jean [14]3 years ago
4 0
Choice-D will do the job nicely.
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Explanation:

<h3>Given</h3>

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time = 30 sec

<h3>To find -</h3>

current

<h3>Solution </h3>

Current = Charge/time

I = V/T

I = 60/30

I = 2 ampere

More to know -

I = Current

V = Charge

T = Time

3 0
3 years ago
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3 years ago
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faust18 [17]

Answer:

<em>Total momentum is conserved</em>

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3 years ago
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motikmotik

1)

first you find the maxium force that the car can produce.

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