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Describe how to use the right-hand rule to determine the polarity of an electromagnet?
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The what of an electromagnet is determined by the direction of current flow?
The electromagnet (polarity) is determined by the direction of current.
The polarity of an electromagnet is determined by what?
the direction of the flow of current
The polarity of an eletromagnet is determined by the?
the way in which the positive & negative terminals on the battery or power supply are attached to the electromagnet. switching the leads from the positive terminal to the negative one, and the negative one to the positive terminal should reverse the polarity of your electromagnet.
What determines the magnetic polarity of an electromagnet?
Neodymium Iron Boron (NdFeB or NIB) would be the stongest material of an magnet.(Is the tempature which for this material is 12,800 . Hc is the lenth of the material which is 12,300. BHmax is the strenth which is for this material 40 . The other strenth for other materials are 26, 5.5,3.5 . The highest was 40
What can be done with an electromagnet that cannot be done with a regular permanent magnet?
Its strength can be easily manipulated (e.g. you can switch it off). Or the strength can be varied with the current. Electromagnets can reverse polarity (by reversing the current).
The what of an electromagnet is determined by the direction of current flow?
The electromagnet (polarity) is determined by the direction of current.
What kind of magnet can vary its strength and polarity?
Electromagnet
What kind of magnet can vary its strength polarity?
an electromagnet
What type of magnet can vary its strength and polarity?
electromagnet
The polarity of an electromagnet is determined by what?
the direction of the flow of current
The polarity of an eletromagnet is determined by the?
the way in which the positive & negative terminals on the battery or power supply are attached to the electromagnet. switching the leads from the positive terminal to the negative one, and the negative one to the positive terminal should reverse the polarity of your electromagnet.
What happens when you reverse the current in a current-carrying magnetic field?
The polarity of the electromagnet reverses.
Describe the polarity of alkane molecules?
Alkane molecules are nonpolar.
Describe how the polarity of earth's magnetic field is recorded in the sea-floor?
The polarity of the Earth's magnetic field is recorded in igneous rocks, and reversals.
What would happen to electronics magnets etc if the earths magnetic poles changed?
Nothing - The polarity of an electromagnet depends on the direction of current flow and you can effect the same change in orientation to the earth's field by moving the electromagnet rather than the earth's field.
According to the pattern of half-cell potentials what determines the polarity of a cell?
According to the pattern of half-cell potentials, what seems to determine the polarity of a cell?
What determines the magnetic polarity of an electromagnet?
Neodymium Iron Boron (NdFeB or NIB) would be the stongest material of an magnet.(Is the tempature which for this material is 12,800 . Hc is the lenth of the material which is 12,300. BHmax is the strenth which is for this material 40 . The other strenth for other materials are 26, 5.5,3.5 . The highest was 40
