The earth's liquid outer core is the major cause of the earth’s magnetic field.
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What is magnetic field?</h3>
The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, a vector field. A force acting on a charge while it travels through a magnetic field is perpendicular to both the charge's motion and the magnetic field. The magnetic field of a permanent magnet attracts or repels other magnets as well as ferromagnetic elements like iron. A magnetic field that varies with location will also exert a force on a variety of non-magnetic materials by changing the velocity of those particles' outer electrons. Electric currents, like those utilised in electromagnets, and electric fields that change over time produce magnetic fields that surround magnetised things.
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I think the answer would be Switch 1 open; switches 2, 3, and 4 closed. It is letter D. This will happen when there is a low resistance and a high circuit so from the choices above, when two bulbs are open and one bulb is close, so there is a low resistance and high voltage.
Answer:
The ban was intended to prevent the imminent extinction of ospreys, peregrine falcons, and bald eagles, our national bird, among other species; they were vulnerable because DDT caused a fatal thinning of eggshells, which collapsed under the weight of the parent incubating them.
Explanation:
The hidden cost was to control pests was washing off into rivers and streams, poisoning fish, birds, and even humans with toxic chemicals.
Hope this helps
Base on the said question or problem that state and ask to calculate the current of the said light bulb and in my further calculation and further analysis, I would say that the current of the light bulb would be 0.0292. I hope you are satisfied with my answer and feel free to ask for more
Explanation:
The given data is as follows.
= 0.25 m, q = 5.90 mC = 
= 0.35 m, q = 1.70 mC = 
(a) Now, we will calculate the electric potential as follows.
V = 
First, we will calculate the initial and final electric potential as follows.
= 
or, = 
= 
or, = 
Hence, the value of change in electric potential is as follows.
= 
= 
V
Therefore, the difference in electric potential energy is V.
(b) Now, we will calculate the potential energy as follows.
P.E = qV
= 
V
= 
Therefore, the change in the system's electric potential energy is .
