Recent content by Aksand

I know this rule too i have seen a question talks about magnetic field , the question is solenoid inside a circuit inside two wires, it gives amps , turns , all the information that needed , but the length of solenoid is missed and needed to find it , and ifcousre find the Tesla in the center

I know some of these rules , but i am looking for an alone rule that can find the length with it i have seen in an arabic physics book that the length of solenoid = 2*T*R*N Where: T= 22/7 R= Radius N= number of the loops is it right , or there is wrong with this rule? if it is ...

Hi, is there any rule that we can use to find the The length of a solenoid in the magnetic field Questions??

I know , but i prefer to build an device

yea cell phone jammers, and there is no rule talk about them in my country so it is allowed no i am not a teacher but i would love to know and help my teacher about that, like a last year project

Hi, If i want to build a device that is able to cut or stop the signal of the mobile just of 5-10 meters is it possible? , and if it is what is the circuit, and what is the materials that i need? And this is not a Homework,,i am sorry for my mistake before.

Aha,, Thanks a lot , you helped me a lot , and thanks to everyone who tried to help me and put a post

in equation Nu.1 and Nu.2 Why the V=0 i mean "V2-0" and "V3-0"?,what the zero refer to??

Thanks a lot , it is solved

I am in the last year in the High school,i have taken the Kirchoff rules and,but in question , i don't know in the R3 if there a current and how to found it, it is always get false i think that Delta or wye will solve my problem , but i want to know how to make my circuit as delta or wye?

Sorry , i didn't get the answer, i am not brilliant when i introduce 1A, i don't know the up circuit(R1,R4,R3) take what and the down what... about wye or delta , what is the rules that i have to follow??

i know that before , but how to get the last current

Hi, I got a question in my exam ask for the equivalent resistance, The Question is: Find the equivalent resistance for this circuit using Kirchoff Rules I build the Image by circuit maker. http://lookpic.com/i/965/ud67CMW6.jpeg R1=2 Ohms R2=2 Ohms R3=2 Ohms R4=4 Ohms R5=1 Ohms i know that...