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where L is the inductance of the coil, measured in henrys, and dI/dt means 'change of current divided by change of time'. The minus sign indicates that the induced voltage opposes the change in current.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoBy moving it through a magnetic field, and/or by causing a moving or changing magnetic field to interact with it.
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What is the different between 3phase plus N generator coil and motor coil?
Generator coils generate the voltage, motor coils use the generated voltage.
Can tesla coils generate an emp?
the coil it is used to produce high voltage, low current, high frequency alternating current electricity. A burst of electromagnetic radiation is something the coil will not do.
What is meant by a primary coil and a secondary coil?
In a transformer, the primary coil is the coil that has voltage applied to it. The secondary coil is the coil that we take voltage from. Transformers are used to step up voltage, step down voltage, or simply to isolate circuits.
How many turns of wire in a coil to produce 240V?
it depends on what is your low volatage. the turns of coil it's according to what is the voltage they are,When the coil / coil is equail voltage/voltage
What is the difference between current coil and voltage coil?
These terms apply to the coils inside a wattmeter. 'Pressure coil' is an archaic term for 'voltage coil', which is connected in parallel with the supply, while the 'current coil' is connected in series with the load.
What is the different between 3phase plus N generator coil and motor coil?
Generator coils generate the voltage, motor coils use the generated voltage.
What is the emf induced at zero field current.and what does it signify?
EMF is the voltage across a coil (or motor) due to changes in the magnetic field. If you change the current the coil will generate a voltage (in the opposite direction of the current). So it is not the field but the change that matters.
Can tesla coils generate an emp?
the coil it is used to produce high voltage, low current, high frequency alternating current electricity. A burst of electromagnetic radiation is something the coil will not do.
What is meant by a primary coil and a secondary coil?
In a transformer, the primary coil is the coil that has voltage applied to it. The secondary coil is the coil that we take voltage from. Transformers are used to step up voltage, step down voltage, or simply to isolate circuits.
How can you obtain three time voltage across potential coil of wattmeter?
The voltage applied to the voltage coil of a wattmeter must not exceed the voltage rating of that coil.
How many turns of wire in a coil to produce 240V?
it depends on what is your low volatage. the turns of coil it's according to what is the voltage they are,When the coil / coil is equail voltage/voltage
What is current coil and voltage coil?
The current coil is one through which the current of source can pass. This coil is connected in series. The voltage coil is connected parallel to the applied voltage. In the current coil the quantity of current flowing is proportional to the current flowing in load while in the voltage coil, current flowing is proportional to applied supply voltage. The voltage coil current is independent of current flow in load. For a complete understanding, please refer to a watt meter diagram.
What is the difference between current coil and voltage coil?
These terms apply to the coils inside a wattmeter. 'Pressure coil' is an archaic term for 'voltage coil', which is connected in parallel with the supply, while the 'current coil' is connected in series with the load.
How can coils endanger mosquitoes?
A coil is used to generate a high voltage and usually mosquitoes are attracted by a bait heat or smell. When they enter the trap they get zapped and die.
What is the highest and lowest voltage of an electromagnet?
The strength of an electromagnetic is determined completely by the current through its coil, and doesn't depend on the voltage across the coil. The voltage will be (current) x (resistance of the coil).
Which electric heater will yield the greater heat output a large resistance in the coil or a small resistance in the coil?
With the same voltage across two conductors, the conductor with the smaller resistance will dissipate more power, i.e. generate more heat.
Why is there a difference in current in a coil when you apply dc voltage and then AC voltage to it?
A coil has both resistance and inductance. When you apply a d.c. voltage, the opposition to current is the resistance of the coil. When you apply an a.c. voltage, the opposition to current is impedance -the vector-sum of the coil's resistance and its inductive reactance. Inductive reactance is proportional to the inductance of the coil and the frequency of the supply.
