If the car slows down, the magnet inside the cup rotates more slowly, which reduces the strength of the magnetic field, resulting in smaller eddy currents and less deflection of the needle. When a car is stopped, the hairspring holds the needle at zero. The Electronic Speedometer An ...
-5 tesla. so, i will assume this is somewhere around the value of the magnetic field needed to delete stuff. electromagnet in the truck the real question is: how much current would need to be going into the coil in the truck to produce that same magnetic field but from a greater ...
Coils are inductors–they resist the flow of alternating current. This inductance is accomplished by magnetically shifting the relationship between the voltage (how much electromagnetic force is being applied) and the current (how many electrons are flow
A simple, experimental motor such as this isn't capable of making much power. We can increase the turning force (ortorque) that the motor can create in three ways: either we can have a more powerful permanent magnet, or we can increase the electric current flowing through the wire, or ...
I have a question, if I have a 100amp meter on my residence, but my total amps in the residence is 153 amps (cooker, A/C package unit, split A/C's, water heater, etc), will i need to increase my electrical meter to more amps, or will I possibly be able to use the existing...
To make a magnet repel a metal, one must first understand the properties of a magnet. A magnet has two poles, a north pole and a south pole. When magnets are placed near each other, opposite poles attract and like poles repel one another. When a metal en
Some non-magnetic substances, when placed within a magnetic field, slightly reduce the strength of that field, a phenomenon known as diamagnetism. On the other hand, there are nonmagnetic substances possessing an uneven number of electrons per atom, and in these instances a slight increase in ...
Now, if we want to increase the magnetic “attraction”, we must decrease the charge repulsion even further, and we can do that by excluding more and more of this rogue photon wind, both inside and outside the magnets. That is what an electric current will do. In an electromagnet, we ...
How do you increase the magnetic field of a magnet? How does moving a magnetic field create an electric field? How can a current loop be used to determine the presence of a magnetic field in a given region of space? Explain. How to measure magnetic field strength of a coil. ...
Magnetic fields are also responsible for most of the electricity generated on the planet and are the reason car batteries stay charged while you drive. Answer and Explanation: 1 Become a Study.com member to unlock this answer! Create your account View this answer Induced magnetism occurs ...