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allochka39001 [22]
2 years ago
8

Which item is necessary to make an electromagnet? Question 4 options: Render of a wooden cube with sharp edges, coordinating pat

terns and fine wood texture. Minimal shadow and reflection. Copper Wire Electrical switch assessment graphic Green plastic spoon.
Physics
1 answer:
BlackZzzverrR [31]2 years ago
4 0

The electromagnet is a device that requires conducting wires wrapped around the iron core.

For making an electromagnet, the most necessary item is a copper wire.

What is an Electromagnet?

An electromagnet is a device that has conducting wires wrapped around an iron core. When electricity is passed through the wires, a magnetic field is generated. The setup acts as a strong magnet.

In order to make an electromagnet, a current-carrying wire is needed to wrap around a magnetic material. The current-carrying wires will play the role of conducting wires and the conducting wires are necessary to make an electromagnet. These wires can be made of copper.

Thus, we can conclude that for making an electromagnet, the most necessary item is a copper wire.

Learn more about the electromagnet here:

brainly.com/question/10060657

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a concave lens creates a virtual image at -47.0 cm and a magnification of +1.75. what is the focal length?
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The focal length of given concave lens will be -26.85 cm

The height of an image to the height of an object is the ratio that is used to determine a lens' magnification. Additionally, it is provided in terms of object and image distance. It is equivalent to the object distance to image distance ratio.

Given  concave lens creates a virtual image at -47.0 cm and a magnification of +1.75.

We have to find focal length

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So the focal length of given concave lens will be -26.85 cm

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brainly.com/question/6947486

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8 0
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Valerie is preparing a blood sample for analysis. She wants to separate the solid red blood cells and obtain only the liquid por
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Use the right-hand rule for magnetic force to determine the charge on the moving particle. This is a charge.
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Answer:

Use the right-hand rule for magnetic force to determine the charge on the moving particle.

This is a  

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Explanation:

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