Ohm's Law
The current flowing through the conductor is directly proportional to the voltage difference across the ends of the conductor and inversely proportional to the resistance. This relation was discovered by Georg Simon Ohm and so it is known as Ohm's Law.
If 'I'current flowing through the conductor of resistance 'R' across which potential difference 'V' is applied then according to Ohm's law
Limitations
- Ohm's Law cannot be applied to circuits consisting of electronic tubes or transistors because such elements are not bilateral i.e they behave in different way when the direction of flow of current reversed as in case of diode.
- Ohm's law also cannot be applied to circuits consisting of nonlinear elements like powdered carbon, thyrite, electric arc etc.
For More Explanation see the below video:
Conductance and Conductivity
Current Density
Types of Current Supply
Electric resistance in a D.C. circuit has been measured in OHMS (Ω) along with also a material will have a value of one ohm if a potential of one volt produces a current of one ampere. Then Ohms may likewise be regarded as as volts/amps. The further resistance that a material or circuit possesses the less current will stream.Try this ohm calculator app through which you can easily came to know about the calculations of voltage,current and resistance.
ReplyDeleteElectric resistance in a D.C. circuit has been measured in OHMS (Ω) along with also a material will have a value of one ohm if a potential of one volt produces a current of one ampere. Then Ohms may likewise be regarded as as volts/amps. The further resistance that a material or circuit possesses the less current will stream.Try this ohm calculator app through which you can easily came to know about the calculations of voltage,current and resistance.
ReplyDeleteOhm's Law in essence says the immunity of some factor (usually a resistor) is corresponding to this voltage fell across the resistor divided from the existing proceeding right through it.This regulation tends to make it not too difficult to get certainly one of 3 principles: voltage along a resistance, so the immunity value , or even so the current flowing through the immunity.
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