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What else can I help you with?
Does an electromagnet keep is force when the electricity goes off?
no because you need electricity to turn it on
How does lectromagnet work in loud speakers?
The electromagnet is a very important part of loud speakers. The electromagnet is always placed in the front of the magnet. When the electricity goes through the electromagnet the field is changed and this produces the vibrations in speakers.
When a car goes around a curve what force keeps the car on the road?
Velocity
How do electromagnet fire alarms work?
the electromagnet makes the door close when a fire alarm goes off
What happens when a compass is placed next to a electromagnet?
the arrow goes to the magnet
What kind of current goes through electromagnet?
A type of magnetic energy.
What is the example of centripetal force?
An example of centripetal force is when a car goes around a curve with a constant speed. The friction between the tires and the road provides the centripetal force that keeps the car moving in a curved path.
What is the hypothesis for electricity?
We are long past the hypothesis stage, with regard to electricity, which is a very well understood phenomenon at this point. If you would like to know about the history of scientific investigation of electricity, there were a number of hypotheses, including the hypothesis that lightning is a form of electricity (which is true) and that nerve impulses are also a form of electricity (also true) and that electricity can be generated by some types of chemical reactions (also true) and that electricity can be used to make the Frankenstein monster come to life (not true).
What does a buzzer do in a circuit?
When electricity goes through it it buzzes
What keeps a hovercraft up?
They use a special kind of fan where none of the air goes backwards and all of it goes forward, unlike mast fans. This reduces the force, but increases the amount of air that goes down. Then, it goes to the plenum chamber (which is like the gap between two cups when they are stacked) where the speed of the air is increased. Then, it goes to the ground and keeps the hovercraft hovering. The skirt keeps most of the air from escaping, but some always goes. This is why the fans produce a constant consistent supply of air equally around the hovercraft so it does not tip over or fall. Hope it helped:)
Why are there more thumbtacks attached in electromagnet b as compared to electromagnet a?
I'm having a lot of trouble seeing the picture that goes along with this question in the book, so I'll have to take a wild guess based on no information. My guess is that electromagnet 'b' has more current flowing in its wire coil than electromagnet 'a' has. Another possibility is that the current through both coils is the same, but the coil of electromagnet 'b' is wound with more turns of wire than the coil of electromagnet 'a' is. It's just a guess. To be sure, I really need to see that picture.
Which is the equipment used when electricity goes off in home?
A flashlight is sometimes used when the electricity goes off in the home. If in the UK it would be a torch.
