A U-shaped iron bar is welded onto a flat iron bar, and copper wire is wrapped around each half of the U-shaped bar, as shown.
In order to create an electromagnet, what must be done to this device?

Both ends of the wire must be attached to each other.
Both ends of the wire must be attached to each other.

An electric current must be applied to the copper wire.
An electric current must be applied to the copper wire.

The entire apparatus must be cooled to just above 0°C.
The entire apparatus must be cooled to just above 0°C.

The number of coils in the wire must be doubled on one side.
The number of coils in the wire must be doubled on one side.

Question

24-08-2022
Biology

contestada

A U-shaped iron bar is welded onto a flat iron bar, and copper wire is wrapped around each half of the U-shaped bar, as shown.
In order to create an electromagnet, what must be done to this device?

Both ends of the wire must be attached to each other.
Both ends of the wire must be attached to each other.

An electric current must be applied to the copper wire.
An electric current must be applied to the copper wire.

The entire apparatus must be cooled to just above 0°C.
The entire apparatus must be cooled to just above 0°C.

The number of coils in the wire must be doubled on one side.
The number of coils in the wire must be doubled on one side.

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pstnonsonjoku pstnonsonjoku · Answer 1 · 2022-08-27T09:37:19+02:00

In order to create an electromagnet, an electric current must be applied to the copper wire. Option B

What is an electromagnet?

We create an electromagnet when we allow current to pass across a coil that is wound around a soft iron core. The soft iron core will become magnetized by the time the current is switched off.

Given the fact that an electromagnet can be created by simple passage of current across a soft iron core that has a copper wire wound round it, it then follows that in order to create an electromagnet, an electric current must be applied to the copper wire. Option B

Learn more about electromagnet:https://brainly.com/question/3427992

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