Recent content by j88k

the question is going to expire in a few hours please help!

I'm not catching your point. I posted the solution to the same question but with different values to make it easier for people to determine the final answer to my values. If you can help then I'll be glad, if not then please ignore this thread. Thank you.

Homework Statement http://img520.imageshack.us/img520/1843/picture7j.png Homework Equations for values 50 turn, 4.0 cm diameter, R = 0.50, surrounding 2.0 cm diameter, 20cm long, 200 turns, 60Hz through I_sol=(0.50A) sin(2πft) the solution would be...

anyone?

anyone?

ok.. if the question was this: You have a 1.0-m-long copper wire. You want to make an N-turn current loop that generates a 1.0 mT magnetic field at the center when the current is 1.0 A. You must use the entire wire. the answer would be: http://img10.imageshack.us/img10/8501/picture3vwq.png...

didn't get it.. one more attempt left.. http://img17.imageshack.us/img17/3769/picture2zjr.png and the answer for part C would be: The magnitude of the electric force is greater than the magnitude of the magnetic force. ?

Homework Statement http://img207.imageshack.us/img207/4245/picture2jwi.png Homework Equations see picture The Attempt at a Solution I don't know what is going wrong with part B and I'm running out of attempts! Please help me with that and part C as well. Thanks

Homework Statement You have a 1.10-m-long copper wire. You want to make an N-turn current loop that generates a 0.800 mT magnetic field at the center when the current is 1.50 A. You must use the entire wire. What will be the diameter of your coil? Homework Equations B =...

Whats the answer for the second part then?

anyone?

Homework Statement In an inkjet printer, letters and images are created by squirting drops of ink horizontally at a sheet of paper from a rapidly moving nozzle. The pattern on the paper is controlled by an electrostatic valve that determines at each nozzle position whether ink is squirted...

i meant from 1 - 2, 2-3 and 3 to 1. can you point out which equation is wrong and correct it? after that i think i got it.

For the first cycle I can use the formula - Wb= P1V1 * ln (V2/V1) For the second cycle I can use - Wb= P(V2-V1) For the second cycle Wb = 0 is that correct ? and do I have to convert the pressure to Pa ?

Homework Statement see attached screenshot. Homework Equations P1V1/T1=P2V2/T2 The Attempt at a Solution I'm running out of time and I need a full guide to the solution. Thank you.