Question

Explain Ohms law and resistivity
For class 9th.☝️​

Answer 1

Answer:

According to Ohm's law, current in the circuit is directly proportional to the potential difference across its ends.

Explanation:

I∝V

=> V=IR

Resistivity of the conductor is the ability of the substance to resist current.

It is constant value. It is independent of Current and voltage.

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Answer 2

OHMS LAW:

OHMS law state that the current through Conductor b/w two points is directly proportional to the voltage across the two points.

Resistivity= the material per unit length for unit across two sections.the SI units of resistivity is ohms.