An ac generator produces emf sin (w d t 4), where m 30 0 V and w d 350 rad s The current in the circuit attached to the generator is i(r) I sin (w d t 4), where I 620 mA (a) At what time after t 0 does the generator emf first reach a maximum (b) At what time after t 0 does the current first reach a...

a Let otn4 n2 to obtain t 34 34350 rads 673 10 ...

An ac generator produces emf = sin (w d t /4), where m

Question:

An ac generator produces emf ξ = ξ sin (w d t – π/4), where ξ m = 30.0 V and w d = 350 rad/s.

The current in the circuit attached to the generator is i(r) = I sin (w d t + π/4), where I = 620 mA.

(a) At what time after t = 0 does the generator emf first reach a maximum?

(b) At what time after t = 0 does the current first reach a maximum?

(c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor? Justify your answer.

(d) What is the value of the capacitance, inductance or resistance, as the case may be?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 24, 2011 05:31 AM

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An ac generator produces emf = sin (w d t /4), where m

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