Posted by Ashley on Tuesday, January 29, 2013 at 6:10am.
The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i  19i2 . Determine the maximum power that can be delivered.
maximum power in watts =

Math  Writeacher, Tuesday, January 29, 2013 at 7:16am
Your umpteen posts have been removed.
Once you write up YOUR ATTEMPT at each problem, please repost, and someone here will be happy to comment.

Math  Ashley, Tuesday, January 29, 2013 at 8:15am
Oh, sorry I didn't realise that I needed to provide my answer. I just want to check to see if I obtain the correct answer.
My answer is:
P=110i19i^2
P'=11038i
0=11038i
i=2.8947
P"=38 therefore a max
Max Power in watts = 2.8947

Math  Writeacher, Tuesday, January 29, 2013 at 8:26am
Please repost your questions along with your answers, and a math teacher will check your work.
Also there's no need to switch user names.

Math  bobpursley, Tuesday, January 29, 2013 at 12:54pm
Hmmm. I agree with i at 2.89 amps
Powermax=put i in the formula for power given, and you have it.
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