Alteranating Current

1. Sep 2, 2004

islandguy

6. A pure alternating current is produced by an alternator in which a coil rotates in a uniform magnetic field. The output voltage from the alternator can be described by V=12sin100t.
a) What is the period of the alternating voltage produced?
[ marks]
b) The output from the alternator is connected across a resistive Load of 6 ohms.
i) Write down the equation that describes the variation of current
[ mark]
ii) Calculate the r.m.s value of the current.
[ mark]
iii) Calculate the peak value of the power consumed by the load.
[ mark]
iv) Sketch a graph of power developed across the resistor, as time passes.

Thanks for ur help

2. Sep 2, 2004

Locrian

This is a plug-n-chug type of question. What kind of problem are you having with it?