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State Ohm's law? How can it be varified ...

State Ohm's law? How can it be varified experimentally ? Does it hold good under all conditions ? Comment.

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Ohm.s law states that the current following through a conductor is directly proportional to the potential difference its ends provided that the physical conditions and the temperature of the conductor remains constatn.
`V/I=` constatn
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ICSE-SAMPLE QUESTION PAPER 5 -SECTION B
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  17. What is the energy absorbed during the phase change called ?

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