What is the first law of Ohm? I- The study of resistance is of great value in determining the power of various electrical equipment. II- The mathe...

What is the first law of Ohm?

I- The study of resistance is of great value in determining the power of various electrical equipment.
II- The mathematical expression that allows the determination of the resistance is V = R.I.
III- R is the electrical resistance given in ohms, whose symbol is Ω.
IV- V is the electric voltage at the terminals of the device, given in volts, whose symbol is V.
V- I is the current intensity that circulates through the device, given in amperes, A.
a) Only I and II are correct.
b) Only II, III, and IV are correct.
c) Only I, III, IV, and V are correct.
d) All statements are correct.

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01/11/2023

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Eletrotécnica Geral • Universidade Federal de SergipeUniversidade Federal de Sergipe

Eilson A. Dos Santos

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Ed

01.11.2023

The first law of Ohm is expressed by the mathematical formula V = R.I, where V is the electric voltage at the terminals of the device, given in volts, whose symbol is V, I is the current intensity that circulates through the device, given in amperes, A, and R is the electrical resistance given in ohms, whose symbol is Ω. Therefore, alternative b) is correct, which states that only II, III, and IV are correct.

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