physics- value of current and resistance?

silent · #1 (**permalink**) 02-26-2008, 07:12 PM

The figure below shows the time variation of the current through an electrical heater when it is plugged into a 115V, 50Hz outlet.

link to picture:
http://img132.imageshack.us/img132/7948/accurrentdy5.gif

1. What is the rms value of the current drawn by the heater?
2. What is the resistance of the heater? Use "ohm" as units.

edonkey · #2 (**permalink**) 02-26-2008, 07:13 PM

1. RMS value = 7.07 A

2. R = V/I (ohm's law) = 115/7.07 = 16.3 ohm

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