explain limitetion of ohm's law
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~The limitations of Ohm's law are explained as follows: This law cannot be applied to unilateral networks. A unilateral network has unilateral elements like diode, transistors, etc., which do not have same voltage current relation for both directions of current~
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WHAT IS THE OHM'S LAW?
- It states that the voltage across a resistor is directly proportional to the current flowing through the resistance
V = IR
where,
V = voltage
I = current
R = resistor
LIMITATIONS
- For non ohmic devices the value of R is not a constant.
- It does not apply for devices which do not have same voltage current relation for both directions of current.
- If the physical conditions such as temperature or pressure are not kept constant (or not in proper range) then ohms law may not give expected results.
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