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Where does Ohm's law fail?
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Why does Ohm's law fail?
Answer : Ohm's Law is a fundamental principle in electrical engineering that relates voltage (V), current (I), and resistance (R) through the equation \( V = IR \). However, Ohm's Law is an ... -linear materials, temperature variations, high voltages, and AC circuits can all cause deviations from Ohm's Law....

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Where is Ohms law invalid?
Answer : Ohm's Law, which states that \( V = I \times R \) (where \( V \) is voltage, \( I \) is current, and \( R \) is resistance), is a fundamental principle in ... of electrical components and materials is more complex and cannot be described by a simple linear relationship between voltage and current....

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Where is Ohm's law used?
Answer : Ohm's Law is used in many areas of electrical and electronics engineering. It's fundamental for understanding how electrical circuits behave. Here's a breakdown of some key applications: 1 ... foundational principle that makes it easier to work with electricity in a controlled and predictable way....

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Where is Ohm's law not applicable?
Answer : Ohm's Law, which states that \( V = IR \) (where \( V \) is voltage, \( I \) is current, and \( R \) is resistance), does not apply in the following cases: 1. **Non- ... materials** (where resistance remains constant), but in non-linear, time-varying, or complex systems, it doesn't hold true....

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Does a LED lamp obey Ohms law?
Answer : A typical LED (Light Emitting Diode) does not strictly obey Ohm's Law in the same way a simple resistor does, but it is still influenced by the principles behind Ohm's Law. Ohm' ... sense, their behavior can be understood using similar principles if we account for their non-linear characteristics....

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How does Ohm's law apply to circuits?
Answer : Ohm's Law is a fundamental principle in electrical circuits that describes the relationship between voltage, current, and resistance. It can be expressed with the formula: \[ V = I \times R \] Where: ... a circuit, and it allows you to calculate one of these quantities if you know the other two....

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How can a SCR fail?
Answer : A **Silicon-Controlled Rectifier (SCR)** can fail in several ways, typically due to issues like electrical, thermal, or mechanical stresses. Here are the main ways an SCR can fail: ### 1 ... these failure modes, you can take steps to ensure that an SCR operates reliably in your circuit!...

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What is the SI unit of ohms law?
Answer : The SI unit of resistance, according to Ohm's Law, is the **ohm** (symbol: Ω). Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it and ... the SI unit of resistance, **ohm (Ω)**, is the unit used to measure resistance in Ohm's Law....

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How Millman's theorem is related with Ohm's law?
Answer : Millman's Theorem and Ohm's Law are both fundamental concepts in electrical circuits, and while they are separate ideas, they are related in how they help analyze circuits with multiple ... provides the necessary relationship to calculate voltage, current, or resistance in the simplified circuit....

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Why Ohm's law is not applicable for nonlinear circuit?
Answer : Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it, with the proportionality constant being the resistance, i.e., \( V = IR \), where \ ... the voltage and current do not have a fixed, proportional relationship, so Ohm's law doesn't apply....

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Which conductors do not obey Ohms law?
Answer : Not all conductors obey Ohm's Law. Ohm's Law states that the current passing through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance (I = ... , the current and voltage do not have a simple proportional relationship like Ohm's Law suggests....

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Why doesn't semiconductor obey Ohms law?
Answer : Semiconductors do not strictly obey **Ohm's Law** because their resistance is **non-linear** and **depends on factors like temperature, voltage, and doping levels**. Here's why: ### 1. * ... more complex laws like the **Shockley equation for diodes** and **Ebers-Moll model for transistors**....

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Why Ohms law is not applicable at very low temperature?

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Under what conditions Ohm's law is not obeyed in a conductor Class 12?
Answer : Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature and physical conditions of the conductor remain constant. ... magnetic fields or extreme voltages) cause a non-linear relationship between voltage and current....

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Why Ohms law is not applicable at variable temperature?
Answer : Ohm's law, which states that \( V = IR \) (where \( V \) is voltage, \( I \) is current, and \( R \) is resistance), assumes that the resistance \( R \) of a ... variable. Instead, you need to account for how resistance changes with temperature in order to understand the behavior of the material....

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Why we use Kirchhoff's law instead of Ohms law?
Answer : Great question! Kirchhoff's laws and Ohm's law serve different purposes, and they are often used together in circuit analysis, but they are not interchangeable. ### Ohm's Law Ohm's Law (V ... when circuits are more complex. They work together to help you fully understand how a circuit behaves....

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At what temperature is Ohm's law valid?
Answer : Ohm's law is valid at a temperature where the material behaves in a linear and predictable manner, meaning the resistance stays constant with changes in voltage or current. For most materials, ... too much with temperature changes. This is typically around **room temperature** for most conductors....

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What two materials do not obey Ohm's law?
Answer : Two materials that do not obey Ohm's Law are: 1. **Semiconductors** (like silicon and germanium): - In semiconductors, the relationship between voltage and current is not linear ... material is different from the ideal linear relationship between voltage and current that Ohm's Law describes....

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