PLEASE HELP ME How is a conductor different from an insulator? Conductors have magnetic fields; insulators do not have magnetic fields. Conductors do not have magnetic fields; insulators do have magnetic fields. In a conductor, electric current can flow freely; in an insulator, it cannot flow freely. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.
Answers
The answer;
In a conductor, the electric current can flow freely; in an insulator, it cannot flow freely.
Electrical conductance is the measure of the ease to pass an electric current through a material. Conductors usually have free electron in their bonds that enable them to carry electric current end to end. The higher the free electrons the higher the conddictivity. Insulators on the other and have no free electrons with this regard. Having free electrons in the structure is mainly determined by the electron configuration of the atoms of the element.
The correct statement is "In a conductor, electric current can flow freely; in an insulator, it cannot flow freely." The correct option is C.
A conductor is a material that allows the flow of electric current due to the presence of free electrons that can move easily. An insulator, on the other hand, is a material that restricts the flow of electric current because its electrons are tightly bound and cannot move freely.
A. Conductors have magnetic fields; insulators do not have magnetic fields.
This statement is not true. Both conductors and insulators can have magnetic fields, depending on the circumstances. The presence or absence of magnetic fields is not a defining characteristic that distinguishes conductors from insulators.
B. Conductors do not have magnetic fields; insulators do have magnetic fields.
This statement is also not true, for the same reasons mentioned above. Both conductors and insulators can have magnetic fields.
D. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.
This statement is the opposite of the correct option. In a conductor, electric current can flow freely because conductors have a large number of free electrons that are loosely bound to their atoms and are able to move easily in response to an electric field. In contrast, in an insulator, electric current cannot flow freely because insulators have tightly bound electrons that are not free to move, thus hindering the flow of electric current.
Therefore, option C is the correct one as it accurately describes the difference between conductors and insulators based on their ability to allow the flow of electric current.
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The potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
What will be the potential difference?
It is given that:-
Charge Q = +4.00 mC or
insulating sphereradius R = 5.00 cm = 0.05 m
The formula for the potentialdifference at the surface of the sphere is given by
The formula for the potentialdifference at the center of the sphere
The difference between the potential difference will be
Thus the potential difference between the center of the sphere and the surface of the sphere will be PD=3.6 x 10^8 V
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Answer:
3.6 x 10^8 V
Explanation:
Q = 4 m C = 4 x 10^-3 C
r = 5 cm = 0.05 m
The formula for the potential at the surface is
Vs = K Q / r = (9 x 10^9 x 4 x 10^-3) / 0.05 = 7.2 x 10^8 V
The formula for the potential at the centre is
Vc = 3/2 Vs
Vc = 1.5 x 7.2 x 10^8 V = 10.8 x 10^8 V
The difference in potential is
V = Vc - Vs = 10.8 x 10^8 - 7.2 x 10^8 = 3.6 x 10^8 V
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the 25 kg one
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The higher the weight the higher the inertia.
lets suppose we blow wind at both of these objects at a very high rate equally, u will notice after some time depending on the strength of wind the 8kg object will probably move earlier than the 25 kg one.
b. spring tides
c. wind-generated waves
d. deep-ocean waves
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Charmane throws a rock into a lake. She has created _____.
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d. deep-ocean waves
Charmane throws a rock into a lake. She has created impact waves. The answer is letter A.
The answer is A, impact waves