Science and Nature Quiz for 29 June 2011
A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.
Question 1: The ratio of the input voltage to the output voltage of a transformer is directly proportional to what?
A
B
The size of the container that it is in
The number of turns in the windings of the input and output coils
C
The humidity at the time
D
Altitude