A student wraps 10 coils of copper wire around an iron bolt, and then she connects the ends of the wire to a battery. Next, the student uses the nail to lift paper clips. She then conducts a second trial using the same wire, battery, and nail, but with 30 coils of copper wire wrapped around the bolt. What will happen in the second trial?
The bolt will lift more paper clips, because more coils of wire produces a stronger magnetic field.
The bolt will lift more paper clips, because more coils of wire produces a stronger magnetic field.
The bolt will lift the same number of paper clips, because both trials used the same type of battery.
The bolt will lift the same number of paper clips, because both trials used the same type of battery.
The bolt will lift less paper clips, because more conductive material in the system will balance more paper clips.
The bolt will lift less paper clips, because more conductive material in the system will balance more paper clips.
The bolt will lift the same number of paper clips, because both trials used the same type of paper clips.
The correct answer is:
The bolt will lift the same number of paper clips, because both trials used the same type of battery.
The correct answer is: The bolt will lift more paper clips, because more coils of wire produces a stronger magnetic field.
The correct answer is: The bolt will lift more paper clips, because more coils of wire produce a stronger magnetic field.
When a current flows through a wire, it creates a magnetic field around it. The strength of this magnetic field depends on various factors, including the number of coils of wire. In this case, when the student wraps 30 coils of copper wire around the iron bolt, there are more turns for the current to flow through. This increases the number of magnetic field lines produced, resulting in a stronger magnetic field.
The stronger magnetic field will interact with the paper clips, which are made of iron or steel, materials that can be magnetized. As a result, the paper clips will be attracted to the magnetic field and be lifted by the bolt.
Therefore, in the second trial with 30 coils of wire, the bolt will be able to lift more paper clips compared to the first trial with only 10 coils of wire.