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Ohm’s law is applicable to
- a)semi – conductors
- b)vacuum tubes
- c)electrolytes
- d)none of these
Correct answer is option 'D'. Can you explain this answer?
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Ohm’s law is applicable toa)semi – conductorsb)vacuum tube...
Ohm is a unit of electrical resistance, denoted by the symbol Ω. It is named after Georg Simon Ohm, a German physicist who discovered Ohm's law. One ohm is equal to the resistance of a conductor through which a current of one ampere flows when a potential difference of one volt is applied across it.
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Ohm’s law is applicable toa)semi – conductorsb)vacuum tube...
Ohm’s law: Ohm’s law states that at a constant temperature, the current through a conductor between two points is directly proportional to the voltage across the two points.
Voltage = Current × Resistance
V = I × R
V = voltage, I = current and R = resistance
The SI unit of resistance is ohms and is denoted by Ω.
It helps to calculate the power, efficiency, current, voltage, and resistance of an element of an electrical circuit.
Voltage = Current × Resistance
V = I × R
V = voltage, I = current and R = resistance
The SI unit of resistance is ohms and is denoted by Ω.
It helps to calculate the power, efficiency, current, voltage, and resistance of an element of an electrical circuit.
Limitations of ohms law
- Ohm’s law is not applicable to unilateral networks. Unilateral networks allow the current to flow in one direction. Such types of networks consist of elements like a diode, transistor, etc.
- Ohm’s law is also not applicable to non – linear elements. Non-linear elements are those which do not have current exactly proportional to the applied voltage that means the resistance value of those elements’ changes for different values of voltage and current. An example of a non-linear element is thyristor.
- Ohm’s law is also not applicable to vacuum tubes.
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Ohm’s law is applicable toa)semi – conductorsb)vacuum tubesc)electrolytesd)none of theseCorrect answer is option 'D'. Can you explain this answer?
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