When an electron goes from an excited state to the ground state, ...

[sc00by25]

When an electron goes from an excited state to the ground state,
 a. energy is absorbed.
  b. a photon is absorbed.
  c. a photon is emitted.
  d. none of these occur.

Question 2

A step-up transformer has an input voltage of 110 V (rms). There are 100 turns on the primary and 1500 on the secondary. What is the output voltage?
 a. 1 600 V (max)
  b. 1 650 V (rms)
  c. 3 260 V (max)
  d. 165 kV (rms)
  e. 7.3 V (rms)

[chloejackso]

Answer to Question 1

c

Answer to Question 2

b