abreubryan1 abreubryan1

18-03-2020
Physics

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Which of the following statements is the best description of Ohm's law?
Electric current is directly proportional to voltage and inversely proportional to resistance.
Electric current is inversely proportional to voltage and directly proportional to resistance.
Electric current is proportional to resistance and inversely proportional to voltage squared.
Electric current is directly proportional to voltage and inversely proportional to resistance squared.

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bhuvna789456 bhuvna789456

26-03-2020

Electric current is directly proportional to voltage and inversely proportional to resistance.

Explanation:

As per the Ohm's law concept, Electric current is directly proportional to the voltage and inversely proportional to resistance in it.
This law is valid only at constant temperature. It is due to the fact that, If temperature varies resistance varies as a parameter of temperature. Hence we couldn't identify the exact current value.

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