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In point of fact, vacuum tubes do obey Ohm's law. Everything electrical obeys Ohm's law. The reason vacuum tubes don't appear to obey the law is that not every consideration takes into account the fact that vacuum tubs have dynamicresistance. Ohm's law, as applied to "pure" ohmic resistors, requires constant resistance, which no material, no matter how good, exhibits. In the real world, you have to consider that resistance can vary along with voltage and current, and this "complicates" things.
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In a series circuit each device that is added to the circuit decreases the what?
Depends on the device. If it is a resistor and you have a fixed voltage then the circuit will obey Ohms law. Voltage = Current x Resistance. So if R increases by adding more resistors in series and the voltage is constant, the current will decrease.
Do transformers obey Ohm's Law?
Yes, they do. The confusion for most people comes from the fact that ohm's law says that when voltage goes up, current goes up; but conservation of power says that when voltage goes up, current goes down. The reason it still applies is that a transformer divides a single circuit into what are actually two electrically-separate circuits. Ohm's law applies to each sub-circuit individually, while conservation of power must hold for the entire circuit as a whole. A more in-depth explanation can be found on this page: http://www.blueraja.com/blog/194/do-transformers-obey-ohms-law
How do you plot ohms law graph of potential difference versus current?
The current is represented by the horizontal (x) axis, and the potential difference is represented by the vertical (y) axis.If the resulting graph is a straight line, then it confirms that the circuit is obeying Ohm's Law. If the resulting graph is a curve, then the circuit does not obey Ohm's Law.The gradient at any point along of the resulting line represents the resistance of the load for that ratio of voltage to current.
How the current in a circuit changes if the voltage in the circuit is decreased and the resistance remains the same?
If the ratio of voltage to current is constant, then the circuit is obeying Ohm's Law. If the ratio changes for variations in voltage, then the circuit does not obey Ohm's Law.
How do you apply Ohm's law to a toaster?
The wires in a toaster are composed of a metal that heats up when you pass a current through the wires. The voltage, current and resistance for the toaster obey Ohm's Law (Voltage = Current x Resistance). When the wires heat up this heat causes the bread to toast. The toast is not part of the circuit and is not involved in Ohm's Law.
What is an example of a circuit that doesnt obey Ohms Law?
The easiest circuit that does not obey Ohm's law is a circuit that has a resistance that depends on temperature. For example, if you take a light bulb and draw a current-vs-voltage, you see that in the beginning (under low voltage) the graph is NOT a straight line, but under high voltage the graph is linear. This is because the resistance depends on temperature. the equation V=IR isn't consistent with the graph's shape.
What are Types of electrical circuits that use ohm's law?
the types of circuits use in ohm's law are:serise circuitparallel circuitserise parallel circuitAnswerCircuits that obey Ohm's Law are called 'linear' or 'ohmic', and are mainly (but now always) confined to metal conductors, providing their temperature is constant. Those that do not (the majority) obey Ohm's Law are called 'non-linear' or 'non-ohmic', and include most metals (e.g. tungsten), electrolytes, gases, and electronic components such as diodes, vacuum tubes, etc.
In a series circuit each device that is added to the circuit decreases the what?
Depends on the device. If it is a resistor and you have a fixed voltage then the circuit will obey Ohms law. Voltage = Current x Resistance. So if R increases by adding more resistors in series and the voltage is constant, the current will decrease.
Is the verb obey to or just obey?
The verb is merely, obey. I obey, you obey, he, she, it obeys. One may be obedient to someone, but one does not "obey to" someone.
What is Working stress method of RCC design?
This is the method in which the structure is analyzed by elastic theory i.e. theory of simple bending in which materials obey the Hook's law.
Sentence for the word obey?
Obey is a verb. Obey means "to do as told".Example:Soldiers should obey orders.
What is the present tense of obey?
Obey is present tense. I/We/You/They obey He/She/It obeys
How do the types of conductors which do not obey Ohms law have an application in circuit design?
Ohm's Law is by no means universal -it doesn'tapply to all materials. In fact, it doesn't apply to most materials or electrical devices! For Ohm's Law to apply, the ratio of voltage to current must remain constant for variations in voltages This is only true for 'ohmic' or 'linear' materials; those materials that do not obey Ohm's Law are called 'non-ohmic' or 'non-linear'.However, being 'non-ohmic' doesn't mean that there are noapplications for these materials! For example, a tungsten lamp filament is 'non-ohmic', but is obviously very widely used. Numerous other non-ohmic materials and devices are also widely-used, including diodes, vacuum tubes, etc.Some materials are 'non-ohmic' over for a particular range of voltage differences, then become 'ohmic' after the voltage reaches a particular value (e.g. a vacuum diode).Remember, though, that the ratio of voltage to current will always indicate the resistance for that particular combination of voltage and current, whether a material or device obeys Ohm's Law or not.Despite what most electricians think, the equation R = V/R is derived from the definition of the ohm, and has nothing whatsoever to do with Ohm's Law!
What is the prefix of obey?
There is dis obey the prefix here is dis because it comes right before obey. You can use Re obey because you can obey someone another time for the same thing maybe. But everybody knows that you can use dis obey and maybe re obey Onother person: Prefixes can be dis-obey
Should you obey laws that you did not create?
Yes, obey the laws and obey them well.
What is obey the warlus?
Obey Kelly
Extension to the word obey?
extension to obey
