Which of the following factors would increase the strength of the electromagnet shown in the video? Select the THREE (3) that apply. many
00:00
00.300)
Removing a battery
Adding more loops of wire to the coil
Adding an iron core like a large nail
Adding a battery
Uncoiling the wire

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.