Answers

2015-09-26T20:47:24+05:30
Ohms law states that current flowing between two points in a conductor is directly proportional to the potential difference between the two points provided temperature is kept constant.
I  is directly proportional to  V
V/IR (constant)the constant is resistance.

limitations of ohms law:
It is valid for metal conductors provided temperature and other physical conditions remain constant. the resistance of the material changes with temperature. it is not applicable for a gaseous conductor. it is not applicable to semi conducters like germanium and silicon.
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2015-09-26T20:51:25+05:30
Ohms law states that the voltage is directly proportional to the current passing through it ,the constant is proportionality is called resistance
The limitations of ohms law are as follows
the law cannot be applied on unilateral networks
a unilateral network has unilateral devices like diode,  transistors  etc..
2.ohms law is not applicable for linear equations
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