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Why is it more difficuilt to move a magnet into a coil of more loops that is connected to a resistor?
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What causes the loops of wire and the pointer to move in a galvanometer?
The electromagnet's coil is attached to a pointer. When a current is in the electromagnet's coil, a magnetic field is produced. This field interacts with the permanent magnet's field, causing the loops of wire and pointer to rotate.
What effect would increasing the number of loops in a coil have on an electromagnet?
Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
How is a nuclear power plant kept cool?
By its cooling system, which consists of a series of coolant loops connected by heat exchangers. Some of the coolants that have been used in these loops have been: water, liquid metals, gasses, the reactor's fuel itself (in molten salt or slurry fueled reactors), etc. depending on the reactor's design. One or more loops is used to make steam to turn turbines to generate electricity. The final loop is open to the environment to dump the unusable waste heat either into the air or a river.
Why does moving the magnetic field past the wire induce a voltage?
A good question. When an electron is moved, it will generate a magnetic force. In a permanent magnet, there are a 'magnetic domains' in which a number of electrons have similar spin direction. In an electromagnet, there are, by definition, a number of electrons moving in the same direction. If you do not have a moving electron, you do not have a magnetic field! From this statement, you may deduce that the amazing magnetic loops on the Sun, are generated by currents flowing inside the Sun.
Would spinning the loops on an electromagnet make it stronger?
Yes, if you increase the number of coils or loops in an electromagnet, it's power increases.
How can the strength of an electro- magnet be increased?
More currents, or more loops.
How can strength of an electro magnet be increased?
More currents, or more loops.
What happens to the amount of voltage induced by pushing a magnet through loops of wire if the number of loops is doubled?
Also doubled.
Is current is drop when it flowing through the resistor?
Current flows in loops, voltage drops across elements. With relation to current, what flows in, must flow out, so no, current is not dropped across a resistor, it flows through a resistor and voltage is dropped across the resistor.
An undirected graph becomes what when it is connected and contains no cycles or self loops?
Tree (since tree is connected acyclic graph)
What causes the loops of wire and the pointer to move in a galvanometer?
The electromagnet's coil is attached to a pointer. When a current is in the electromagnet's coil, a magnetic field is produced. This field interacts with the permanent magnet's field, causing the loops of wire and pointer to rotate.
What are the blasts of gas from the Sun's atmosphere sometimes form enormous loops?
They are "solar prominences" (closely connected to "solar flares").
Do magnetic lines of force ever end or are they continuous?
Magnetic lines of force form closed loops. They can be thought of as emerging from the north pole of the magnet, looping around to the south pole, and then re-entering the magnet to return to the north pole. So they are continuous.
What effect would increasing the number of loops in a coil have on an electromagnet?
Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
What happens when you add more coils to the wire in an electromagnet what else can you do to increase the magnetic field of an electromagnet?
The more loops gives the magnet more voltage. More loops produce more currents. The current that is induced as acts like an opposing magnet and makes it more difficult to move the magnet.
How are the windings of an induction motor made?
The windings of magnet wire are made on a machine that counts the loops of wire as they are formed into usable coils. Once the coils are complete they are installed into the stator slots in a specific order.
Where is froot loops?
Fruit loops is in the pantry.
