A pure inductor is connected to an AC power supply. In this ...

[APUS57]

A pure inductor is connected to an AC power supply. In this circuit, the current
 
  A) leads the voltage by 90.
  B) is in phase with the voltage.
  C) lags the voltage by 45.
  D) lags the voltage by 90.
  E) leads the voltage by 45.

Question 2

In a single-slit diffraction experiment, a beam of monochromatic light of wavelength 630 nm is incident on a slit of width 0.400 mm. If the distance between the slit and the screen is 1.80 m, what are the positions of the first dark fringes?
 
  A) 0.440  10-3 m
  B) 0.870  10-3 m
  C) 1.30  10-3 m
  D) 1.65  10-3 m
  E) 2.84  10-3 m

[Cnarkel]

Answer to Question 1

D

Answer to Question 2

E

[APUS57]

TY

[Cnarkel]

You're welcome