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Why ohm's law is not applicable in networks?
Ohm's Law: Volage = Current times Resistance Yes, voltage is proportional to current. That applies in simple circuits as well as to complex circuits such as electrical networks. Your statement that "voltage is inversely proportional to current in electrical circuits" is incorrect. Perhaps you are not considering some critical part of the statement, or you simply heard it wrong.
Ohms law is not applicable in higher currents?
No. Ohm's law is applicable in every case. That's why its called a "law". Its just that the calculation becomes more complex as parasitic effects creep in, such as at high frequency, voltage, or current.ANOTHER ANSWEROhm's Law applies in so few circumstances that it hardy qualifies as a law at all! One can validly question whether Ohm's Law should be taught these days!Ohm's Law is a law of constant proportionality. It ONLY applies to those conductors and other components whose ratio of voltage to current remains constant for variations in voltage. It does not apply to conductors or components whose ratio of voltage to current changes for variations in voltage. So Ohm's Law is not a universal law.Conductors and other devices which obey Ohm's Law are termed 'linear' or 'ohmic'; those that do not (the majority, in fact!) are termed 'non-linear' or 'non-ohmic'. Some, but not all metals, are linear (e.g. tungsten is not) and most electronic components such as diodes, electrolytes, and gases are non-linear.The ratio of voltage to current is, of course, resistance. And we can use this ratio to determine what the resistance of a device happens to be for that particular ratio, at any given voltage, even for devices that do not obey Ohm's Law. For non-linear devices, the ratio continuously changes for variations in voltage.So, it's questionably whether Ohm's Law should be 'law' at all, and one might wonder why we even bother to teach it!It is quite incorrect to define Ohm's Law as, "resistance equals voltage divided by current", as this equation is derived from the definition of the ohm, and NOT from Ohm's Law -which makes absolutely no reference to resistance.
Compare kirchhoff's voltage law to ohm's law?
Kirchoff's voltage law states that the sum of the signed voltage rises in a series circuit adds up to zero. A consequence of this is that the voltages across elements in a parallel circuit are equal to each other.Ohm's law states that voltage is equal to resistance times current.The two laws can not be compared, because they talk about different things. They are, however, tools that can be used together, along with other laws such as Kirchoff's current law, and Norton and Thevanin equivalents, to perform circuit analysis.Another AnswerThe simple answer is that Kirchhoff's Voltage and Current Laws are universal, and apply under all circumstances, whereas Ohm's Law is not really a 'law' at all! There are very few circumstances in which Ohm's Law applies and, in my opinion at least, should no longer be taught.
Does ohms law applicable for resistor diode transistor Justify?
Ohm's law is applicable in every case, including resistors, diodes, and transistors.While the resistance is not constant, particularly with diodes and even more so with transistors, the law applies, but the dynamics of the situation must be taken into consideration.Even under AC conditions with capacitors and inductors, ohm's law applies, except that now resistance becomes more complex, becoming "impedance" and incorporating reactance, but it still applies so long as you consider every factor.ANOTHER ANSWEROhm's Law does NOT apply to diodes or transistors.Ohm's Law is a law of constant proportionality. It ONLY applies to those conductors and other components (such as diodes, transistors, etc.) whose ratio of voltage to current remains constant for variations in voltage. It does not apply to conductors or components whose ratio of voltage to current changes for variations in voltage. So Ohm's Law is not a universal law.Conductors and other devices which obey Ohm's Law are termed 'linear' or 'ohmic'; those that do not (the majority, in fact!) are termed 'non-linear' or 'non-ohmic'. Some, but not all metals, are linear (e.g. tungsten is not) and most electronic components such as diodes, electrolytes, and gases are non-linear.The ratio of voltage to current is, of course, resistance. And we can use this ratio to determine what the resistance of a device happens to be for that particular ratio, at any given voltage, even for devices that do not obey Ohm's Law. For non-linear devices, the ratio continuously changes for variations in voltage.So, it's questionably whether Ohm's Law should be 'law' at all, and one might wonder why we even bother to teach it!It is quite incorrect to define Ohm's Law as, "resistance equals voltage divided by current", as this equation is derived from the definition of the ohm, and NOT from Ohm's Law -which makes absolutely no reference to resistance.
How many transistors can fit in a microchip the size of a penny?
That depends:simple passive circuits have no transistorsvacuum tube circuits have no transistorssolid state circuits can have anywhere from no transistors (just diodes and/or magnetic amplifying transformers) to as many transistors as needed to perform the function
Where kirchhoff's law fails?
Kirchhoff's laws may fail in cases where the circuit involves non-linear elements such as diodes or transistors, or in circuits operating at very high frequencies where the effects of parasitic components become significant. Additionally, in circuits with rapidly changing magnetic fields or electromagnetic interference, Kirchhoff's laws may not hold true.
Is KVL and KCL applicable to a c circuit?
Yes, Kirchhoff's Voltage Law (KVL) and Kirchhoff's Current Law (KCL) are applicable to all types of circuits, including DC circuits. KVL states that the algebraic sum of voltages around any closed loop in a circuit is zero, while KCL states that the algebraic sum of currents entering a node is equal to the sum of currents leaving the node in a circuit.
Is ohm's law applicable to high transmission lines?
Ohm's law is applicable to all electrical circuits.
What is Ohm's law in a direct circuit?
Ohm's Law is a law of constant proportionality, and only applies to circuits in which the ratio of voltage to current is a constant over variations in applied voltage. Such circuits are called linear or ohmic circuits, and include most metals. However, in the case of metals such as tungsten, for electronic devices such as diodes, and for electrolytes, Ohm's Law does NOT apply, and we call such circuits 'non-linear' or 'non-ohmic'. For linear circuits, Ohm's Law simply states that the current flowing through that circuit is directly proportional to the voltage applied across its ends. The equation R = V/I is not, as many think, derived from Ohm's Law, but from the definition of the ohm.
Does Kirchhoff current law and Kirchhoff voltage law depend on the relationship between current and voltage in a resistor?
Kirchhoff's Voltage and Current Laws apply to circuits: series, parallel, series-parallel, and complex.If your circuit comprises just a single resistor, then they still apply. For example, the voltage drop across a single resistor will be equal and opposite the applied voltage (Kirchhoff's Voltage Law), and the current entering the resistor will be equal to the current leaving it (Kirchhoff's Current Law).
How do you measure current and voltage in circuit by kirchoff's method?
Kirchhoff (not 'Kirchoff') doesn't suggest any way of measuring current or voltage in a circuit. Kirchhoff's Voltage Law defines the relationships between potential differences around any closed loop within a circuit. Kirchhoff's Current Law defines the relationships between currents at any junction within a circuit. Kirchhoff's Laws may also be used to solve complex circuits ('complex' circuits are those circuits which are not series, parallel, or series-parallel). Current and voltage may be measured with an ammeter and a voltmeter, respectively.
Why ohm's law is not applicable in complex network?
Because Ohm's Law is only applicable on good conductor which shows linear relationship b/w voltage and resistance while in the semi conductors it shows non linear relationship, that's why Ohm's law is not applicable on semi conductors...
Can thevenins's theorem be applicable in a network having nonlinear elements?
yesAnswerNo it cannot, any more than Ohm's Law can be applied to circuits with non-linear elements.
Can you apply kcl and kvl in ac and dc both why?
You can apply KCL (Kirchhoff's Current Law) and KVL (Kirchhoff's Voltage Law) in both AC and DC analysis. It just gets complicated in AC, because now you have to consider capacitive and inductive reactance, phase angle, power factor, etc. Even in a purely resistive circuit, one without capacitors or inductors, you need to consider AC analysis techniques if the frequency is sufficiently high, because of parasitic reactance that is always present. Kirchhoff's laws are the laws of nature for electrical and electronic circuits.
Is ohms law applicable to both ac and dc?
Ohm's law is applicable to any circuit, be it DC or be it AC.AnswerOhm's Law is applicable to all linear or ohmiccircuits, regardless of whether they are d.c. or a.c. A linear or ohmic circuit is one in which the ratio of voltage to current is constant for variations in voltage. Ohm's Law does not apply to non-linear or non-ohmic circuits (e.g. tungsten, electronic devices such as diodes, and electrolytes).
Why ohms law applicable only linear resister?
because they have a proportional relation
Why is kirchoffs law important?
Kirchhoff's laws are fundamental in electrical engineering and physics as they provide essential principles for analyzing electrical circuits. Kirchhoff's Current Law (KCL) states that the total current entering a junction equals the total current leaving, ensuring conservation of charge. Kirchhoff's Voltage Law (KVL) asserts that the sum of the electrical potential differences around any closed loop in a circuit is zero, reflecting the conservation of energy. These laws enable engineers and scientists to design and analyze complex circuits effectively.
