Get premium membership and access revision papers with marking schemes, video lessons and live classes.
  OR
Processing. Please wait.

 Form 3 Physics: Heating Effect of an Electric Current Questions and Answers

A hair drier is rated 2500w, 240v.Determine its resistance.

 (1m 37s)
1032 Views     SHARE

Download as pdf file

Answer Text:
#P =v^2/R #
#R = V^2/P = 240^2/2500 = 23.04 ohms#


|