The secondary coil of an ideal neon sign transformer provides ...

[Deast7027]

The secondary coil of an ideal neon sign transformer provides 7500 V at 10.0 mA. The primary coil operates on 120 V. What current does the primary draw?
 
  A) 0.625 A
  B) 0.625 mA
  C) 0.160 A
  D) 1.66 A

Question 2

The number of radioactive nuclei in a particular sample decreases to one-eighth of its original number in 9 days. What is the half-life of these nuclei?
 
  A) 9/8 days
  B) 2 days
  C) 3 days
  D) 8 days
  E) 10 days

[kbennett34]

Answer to Question 1

A

Answer to Question 2

C

[Deast7027]

Thanks

[kbennett34]

Welcome