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Author Question: The universe is only seconds old, a million trillion seconds in fact. In powers of 10, this number ... (Read 12 times)

xclash

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on: Jul 29, 2018
The universe is only seconds old, a million trillion seconds in fact. In powers of 10, this number is
 
  A) 1015.
  B) 1017.
  C) 1019.
  D) 1021.
  E) None of the above.

Question 2

An ac source of period T and maximum voltage V is connected to a single unknown ideal element that is either a resistor, and inductor, or a capacitor. At time t = 0 the voltage is zero.
 
  At time t = T/4 the current in the unknown element is equal to zero, and at time t = T/2 the current is I = -Imax, where Imax is the current amplitude. What is the unknown element? A) a resistor
  B) an inductor
  C) a capacitor
  D) an inductor or a capacitor


isabelt_18

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

C


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