What are 2 similarities between magnetic and electric forces?
Similarities between magnetic fields and electric fields: Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges). Like poles repel; unlike poles attract.
Why is magnetic force important?
The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet. The magnetic field is extremely important to sustaining life on Earth. Without it, we would be exposed to high amounts of radiation from the Sun and our atmosphere would be free to leak into space.
How many magnetic fields are there on Earth?
The Earth’s field ranges between approximately 25,000 and 65,000 nT (0.25″0.65 G). By comparison, a strong refrigerator magnet has a field of about 10,000,000 nanoteslas (100 G).
What affects magnetic force?
The magnitude of the magnetic force between them depends on how much charge is in how much motion in each of the two objects and how far apart they are. The direction of the force depends on the relative directions of motion of the charge in each case.
What is the difference between electrostatic force and magnetic force?
Electrostatic force is apply by a charged body while magnetic force is applied by a magnet. Magnetic forces are always normal to the direction of the velocity of the charge it acts upon, whereas electric force are independent of the direction the charge moves in. …
Can magnetic fields go through lead?
Even though lead is not magnetic it can interact slightly with magnetic fields. By moving a very strong magnet past a piece lead can actually cause the lead to move. The video below shows that lead does interaction with the magnet, other metals, such as Aluminum, Brass, and, Copper have a more visible interaction.
How does the magnetic flux intensity can be controlled?
Magnetic flux control, i.e. modification of the magnetic field distribution and intensity may be accomplished by variation of shape and positioning of the induction coil turns, by insertion of the non-magnetic shields or the magnetic templates that may be all called the magnetic controllers.
What units is magnetic field strength?
Usually, magnetic field strength is defined by the unit of Oe・A/m ( Oersted・Ampere/meter ). And when it is defined by flux density, the units of G (Gauss) or T (Tesla) are used. This means that flux density B is a value which includes magnetizability and magnetic flux H does not include magnetizability.
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