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If you doubled the number of coils and doubled the voltage what would be the increase in magnetic strength?
Njs9
well if you doubled the coils it would be pie times the amount of voltage in the current squared
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∙ 15y ago
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Voltage across resistor is doubled the current is?
Ohm's law states that the voltage across a resistor is the product of the current times the Resistance or V=I x R (I times R). V is Voltage, R is Resistance, and I is Current or Amperage. So if the Voltage is doubled and Resistance stays the same, the Current will be doubled.
How can a change in voltage of a transformer's primary coil create a change in the secondary coil's voltage without the coils touching?
The more coils you have on one side will increase the magnetic force
How does the variation of excitation of an alternator correct power factor?
The rotor of an alternator need a DC voltage applied to it to generate a magnetic field, this magnetic field will generate the AC power in the AC windings.The AVR(Automatic Voltage Regulator) is regulating this DC voltage so that the magnetic field is strong enough to maintain the output AC voltage. As soon as more current is drawn from the output, this output voltage will drop and a stronger magnetic field is needed to sustain the output voltage, so the AVR step up the exiting voltage to get a stronger magnetic field to compensate for the voltage loss in the AC windings.
Generator excitation voltage?
the voltage which is given for creating magnetic field in a generator is known as excitation voltage.
If the voltage is doubled the ampacity of a conductor?
double if resistance is considered same.
Do the induced voltage increase in a transformer when the magnetic field strength increase?
Yes, the more voltage you put in the more you get out. If the transformer is a 2 - 1 ratio and you put 240 in you get 120 out and when you put 480 in you get 240 out. Magnetic field strength and voltage have a direct relationship. +++ The field strength is actually a function of current, although as you say, increasing the voltage will increase the current hence the magnetic field.
Can an electromagnets strength be changed?
The more electricity the more powerful the magnetic field. Increase the voltage, which for the given resistance of the coil, will also increase the current and the magnetic field.
State two methods of increaseing the strength of the magnetic field?
Add another magnet. If an electromagnet increase the windings and/or the power applied. Raise the voltage applied and you will raise the magnetic flux.
How can a scrap heap magnets strength be increased?
There are three different ways to increase your magnet:Increase the voltage or current.Add more turns of the coil.Add a magnetic core inside the coils which will focus the magnetic field.
How can we increase the strength of an electro magnet?
Increase voltage. Increase the number of windings,
Is the size of the voltage induced in a coil through which a megnet moves affected by the strength of the magnet?
Of course that has a great effect since as the magnet strength increase the number of magnetic flux lines increase increasing the induced electromotive force but motion of magnet is needed.
How do you increase current in electromagnet?
1. Increase the strength of the magnetic field. (More field lines to be cut by wire, therefore more voltage induced) 2. Move the magnet - or the wire - more quickly. (More field lines cut per second, therefore more voltage induced) 3. More coils in wire. (A single straight wire moved in a magnetic field will cut the lines once, but a coil of wire will cut the lines twice. More coils, more cutting, more induced 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.
What factors may affect the strength of the magnetic field generated around the coil?
Number of loops and Battery voltage
What factors may affect the strength of the magnetic field generated around a coil?
Number of loops and Battery voltage
In an electromagnet the magnetic force increase as increase?
Adding more coils will make the magnetic field stronger. Magnetic field increases.
A conductor is moving perpendicularly to a uniform magnetic field Increasing the speed of the conductor will cause what to increase?
Voltage
