Question

state the ohm's law ? How can it be verified expirimentally ? Does it hold good under condition? give answer in detail​

Answer 1

Answer:

Ohm's law states that the electric current flowing through a conductor is directly proportional to the potential difference applied across its ends, provided the physical conditions such as temperature remains unchanged. ... A voltmeter (V) and four cells of 1.5 V each.

Ohm's law does not hold good under all conditions as it is not a fundamental law of nature like Newton's law. It is obeyed by metallic conductors only when physical conditions like temperature etc.

Ohm's law does not hold good under all conditions as it is not a fundamental law of nature like Newton's law. It is obeyed by metallic conductors only when physical conditions like temperature etc.

Hope it helps you mate...

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Answer 2

Answer:

Ohms law states that electric current is proportional to voltage and inversely proportional to resistance.

Expirimentally if we have to prove,  the ratio V : I is a constant. This constant is called as the resistance (R) of the conductor.  Then plot a Graph,

After performing experiment for different readings of V & I and recording the observations, if we plot current on the x-axis of a graph and voltage on the y-axis of the graph, we will get a straight-line. The gradient of the straight-line graph is related to the resistance (R) of the conductor.