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Virty [35]
3 years ago
14

What is the simplest requirement for an electromagnet

Physics
1 answer:
nexus9112 [7]3 years ago
4 0
A length of of electrified wire.
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Use the concepts on which maxwell’s equations are based to explain why a compass needle is deflected when the compass is brought
miv72 [106K]

A conductor that is conducting current generates a magnetic field everywhere around it. This magnetic field exerts force on the compass's magnetic needle, causing the needle to deviate.

Definition of Maxwell's rule

A current-conducting conductor creates a magnetic field everywhere around it. The magnetic needle of the compass experiences force from this magnetic field, which causes the needle to veer.

Equation for deflection

We have so far established that the total flux of electric field out of a closed surface is just the total enclosed charge multiplied by 1/ε0, ∫→E⋅d→A=q/ε0. This is Maxwell's first equation. It represents completely covering the surface with a large number of tiny patches having areas d→A.

To learn more about magnetic field refer : brainly.com/question/24761394

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7 0
1 year ago
A rare and valuable antique chest is being moved into a truck using a 4.00 m long ramp. the kj weight of the chest plus packing
Lisa [10]

First let us calculate for the angle of inclination using the sin function,

sin θ = 1 m / 4 m

θ = 14.48°

 

Then we calculate the work done by the movers using the formula:

W = Fnet * d

 

So we must calculate for the value of Fnet first. Fnet is force due to weight minus the frictional force.

Fnet = m g sinθ – μ m g cosθ

Fnet = 1,500 sin14.48 – 0.2 * 1,500 * cos14.48

Fnet = 84.526 N

 

So the work exerted is equal to:

W = 84.526 N * 4 m

<span>W = 338.10 J</span>

7 0
3 years ago
Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 600 kHz. (6.00 · 105 Hz).
frutty [35]
Hmm, I got that the wavelength is 500 meters.
4 0
3 years ago
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NEED HELP FAST!<br> select drop box.<br> questions and options are in pictures.
cluponka [151]

Answer:

First is incrcersing mangnetic field second photosphere

Explanation:

sorry if the first one is wrong

8 0
3 years ago
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The force that gravity exerts on an object is called _____. weight volume density mass
uysha [10]

Answer:

Weight

Explanation:

8 0
3 years ago
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