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قانون آمپر قانون آمپر به فرم ساده زیر است: ∮ → B ⋅d→ l = μ0ienc ∮ B → ⋅ d l → = μ 0 i e n c (1) در معادله فوق، ∮ ∮ به معنی انتگرال بسته است. به عبارت دیگر حاصل ضرب نقطهای B.dl B. d l باید به دور مسیری بسته (حلقه بسته) باشد. به زبان ساده ∮l ∮ l به معنی محیط مسیر بسته است. این مسیر بسته به حلقه آمپر نیز معروف است.
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18/01/2021· Syntax : CURRENT_TIMESTAMP. Parameter : This method doesn't accept any parameter. Returns : It returns the current date as well as time and the format of the output returned is 'YYYY-MM-DD hh:mm:ss.mmm'. Example-1 : Using CURRENT_TIMESTAMP function and getting the current date as well as time. SELECT CURRENT_TIMESTAMP AS …
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