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Inductance is the property of a passive circuit to produce a voltage that is proportional to the rate of change of the current through it. Inductance is defined by the formula:
V = L di/dt
So an inductor of 1 Henry develops a voltage of 1 v across it when the current through it is changing at 1 amp per second.
This is why a DC circuit with inductance is difficult to switch off, because the inductance produces a high voltage when the switch is tripped (because the current is changing very quickly).
In an AC circuit the alternative formula is:
V = jwL.
In this case w is 2pi times the frequency in Hz and the 'j' indicates a 90-degree phase advance in the voltage relative to the current (in the formula 'w' is normally written as a small Greek letter omega but we don't have a Greek font on here).
What else can I help you with?
Why can an induction heating process heat magnetic material faster than non magnetic material?
To heat something by induction (which is and oscillating magnetic field), the material has to react to the magnetic field. As the magnetic field is made to oscillate, the molecules of the material are pulled and vibrated in sympathy with the field and their vibration energy increases. Heat IS the vibration of molecules. Thus induction heating will work on a magnetic material but will have no effect on a material that is not magnetically susceptible.
What word descibes when water soaks into the ground?
It is called percolation of water. The water molecules enter the soil and move downward by gravitational force. This is how the ground water table is recharged with water.
Why is charging by induction important inhelping to protect your environment?
Charging by induction eliminates the need for physical connectors or cables, reducing electronic waste from discarded chargers. It also promotes energy efficiency, as it allows devices to charge wirelessly using renewable energy sources, which is more sustainable for the environment.
Why only steel gets heated on induction hotplate?
Induction hotplates works on the principle of "production of electricity/current by the magnetic field". A copper coil in under the hotplate from which alternating current is passed, which in-turn produce magnetic field. This magnetic field produces heat in 2 ways:1. produces current in the conductive pot placed on the hotplate. (I = current)2. these currents encounter some resistance. (R = resistance)thus we can produce heat = I2RThus we saw that only conductors can get heated on a hotplate. And since steel is a conductor it gets heated. The other cookwares like glass, ceramics will not conduct any current and thus they won't get heated.
How is electricity produced from magnetism?
Electricity can be produced from magnetism through electromagnetic induction. When a conductor, such as a wire, moves through a magnetic field or when the magnetic field around a conductor changes, it induces an electric current to flow in the conductor. This current flow is the basis for producing electricity in generators and other electrical devices.
What word best descibes truthworthy?
Honarable - Honest - Reliable
What best descibes the main purpose of budget?
To plan income & expenses
1 teaspoon best descibes the amount of?
milk in a full jug
Which best descibes The Louisiana Purchase?
It doubled the size of the United States.
Which best descibes the aryan caste system?
You were not allowed to change castes.
Which of these situations best descibes a deficit?
lacking funds to pay for something
Which word best descibes issues that have moral implication of right and wrong?
ethics
What best descibes the geography of Greece?
Mountainous with fertile river valleys and coastlines.
Which term best descibes centrioles beginning to move apart in animal cells?
Prophase
What best descibes the principle of subordination in an outline?
Ideas are put in order from most to least important
What best descibes duress words?
word used to alert friendly listener that they are under threat
What word best descibes the trend on a line connecting the points falls from left to right?
decreasing
