-a wire that is 2mm thick and not coiled
-a wire that is 1-mm thick and coiled
-a wire that is 2-mm thick and coiled
If the current in each wire is the same, the wire that produces the strongest magnetic field is a wire that is 2 mm thick and coiled. The correct option is d.
A magnetic field is a false field of current created. This interactive animation shows how the magnetic field relies on the direction of the current that creates the field and is strongest in the vicinity of the wire.
In every wire, the current is the same. If a wire carrying electricity is wound with additional turns, the magnetic field generated by the wire grows. Low resistance to the current would result from a thick wire. Therefore, the highest magnetic field would be produced by a 2-mmthick wire that is coiled.
Therefore, the correct option is d. a wire that is 2 mm thick and coiled.
To learn more about the magnetic field, refer to the link:
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Answer: option 4: A wire that is 2-mm thick and coiled.
Explanation:
The current in each wire is same. The magnetic field due to a current carrying wire increases if the wire is coiled with the more number of turns. A thick wire would cause low resistance to the current. Hence, a 2-mm thick wire which is coiled would produce the strongest magnetic field.
B. binary star theory
C. Big Bang theory
D. "big crunch" theory
Answer:
Big Bang theory
Explanation:
The big bang theory describes the beginning of the universe. According this theory, all the matter of the universe was confined at a point and about 15-20 billion years ago, it started expanding out of a huge explosion -the big bang. The universe has been expanding since then. The discovery of cosmic microwave background radiation provides the evidence to this theory.
Thus, the correct option is C.
B-rhe energy of the wave increases gradually
C-there is no change in the energy of the wave
D-the propagation of the wave stops immediately
Answer:
A-the energy of the wave decreases gradually
Explanation:
when a wave is acted upon by an external damping force the energy of the wave decreases gradually.
The energy degrades into the form of heat which is considered to be of less value and use. The reason is because it disperses and spreads more widely.
So therefore it end up as heat with a little sound but that is close to none because that too disperses into heat i.e. decreased form of energy.
Answer:
A
Explanation:
PLATO