The instantaneous displacement of a simple harmonic oscillator is given by Y = A cos(ωt + π/4) Its speed will be maximum at the time [ sin 90 deg = cos 0 deg = 1, sin 0 deg = cos 90 deg = 0 ]

Question:

Options :

(a) 2π/ω
(b) π/4ω
(c) ω/π
(d) ω/2π

Answer :

(b) π/4ω

Answer Steps :

step 1

step 2

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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