Question

which article is used before light​

Answer 1

Answer:

No article is used before abstract / uncountable nouns used in a general sense. 'Light' is an abstract noun used in a general sense in this sentence. Therefore, the correct option is: no article.

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Answer 2

Explanation:

Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit. To students of electronics, Ohm's Law (E = IR) is as fundamentally important as Einstein's Relativity equation (E = mc²) is to physicists. E = I x R.