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## Homework Statement

A Purely resistive resistive 100w, 110v lamp is to be supplied by an a.c. source of 230v r.m.s at 50Hz. what value of pure capacitance could be put in series to adjust the current flow to a suitable value?

## Homework Equations

p=iv

q=cv

v=ir

i know a number of other time dependant equations but i don't want to list them all pointlessly

## The Attempt at a Solution

Im not sure of how best to approach this, i don't have much experience with AC circuits. i know the current at the lamp is 0.909 amps, from p =iv. but id appreciate a push in the right direction

cheers,khris