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What is the formula for finding the sum of nth term?

Asked by Sanjay 04/11/2016 Last Modified 07 Oct

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Learn Class XI-XII Tuition (PUC) +2 Sequences and Series

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Related Questions

The current in a circuit follows the relation i = 100sin?t. If frequency is 25 Hz, how long will it take for the current to rise to 50 A ? a.) 1 ms. b.) 3.33 ms. c.) 10 ms. d.) 20 ms.

i= sin wt f= 25 HZ w= 2×pi×f t=? 50=100 sin wt 50=100 sin (2×180×25) t 50/100= sin 9000 t 1/2=sin 9000 t Sin-' (1/2)= 9000t sin -' (1/2)=30 30= 9000 t t = 30/9000 t = 1/300 = 3.33 ms.

Kumar Upendra Akshay

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A slab of certain dielectric is placed between two oppositely charge plates. The intensity between plates __________. (Decreases, Increases, Remains constant)

Decreases

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Those material objects which do not allow the charge or electric current to pass through them are called __________. (Insulators, Conductors, Semi-conductors, none of these)

Insulators

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Are comprehension type Questions there in the history question papers of class XII CBSE?

YES

Sangeeta Sahay

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If two wires in which currents are flowing in the opposite direction are placed parallel and close to each other then they will __________. (Repel each other, Attract each other, Neither attract nor repel each other, None of the above)

Repel

Narendra Kumar

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