Question

find the biggest number of four digits divisible by 38 .

Answer 1

Hey friend..!! here's your answer
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1026 is a biggest number of 4 digits which is exactly divisible by 38

1026 / 38 = 27

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#Hope its help

Answer 2

Answer is 2.5 second. Quick estimation of current I = 10√2 sin(100πt + π/6).

Peak estimation of current I0 = 10√2 A 10√2 sin(100π t' + π/6) = 10 ⇒ sin(100π t' + π/6) = 1/√2 = sin (π/4) ⇒ 100π t' + π/6 = π/4 ⇒ 100 t' = 1/12 ∴ t' = (1/1200) s = 0.8 ms.