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  1. V

    How to find out current in circuit?

    Let's suppose voltage across R is V Then current throw R resistor should be Ir=V/R current I1=4A given Current through the 2 ohm resistor is I2 Apply kcl I1=Ir+I2 4A=V/R+(V-50)/22 If the current through 1ohm resistor is I3 I4 is current from 50 volt source Again from the kcl I2+I4=I3...
  2. V

    How to find out current in circuit?

    What do you mean? Arrow is indicate the direction of current, not the value of current. If I apply the kcl at left node of 2 Ohm resistor. I can't set the equations because there are two unknown values of current
  3. V

    How to find out current in circuit?

    From the circuit, I can't find out the current or voltage across the R because R is unknown I think the possible conditions Current through 1Ω I=50v/1Ω I=50/1 A voltage across 1Ω V=50A*1Ω=50v Now how to find out current and voltage for 2Ω
  4. V

    How to find out current in circuit?

    OK next time I will remember How to find out the resistance R?
  5. V

    How to find out current in circuit?

    KCL at node a I2 = i+i1 I2=i+5 Using kvl in abcd loop 8=5i2+5 i2=3/5 i+5=3/5 i=-4.5A Is it correct?
  6. V

    How to find out current in circuit?

    OK how do you know that we need to apply both type of equation. Actually when I saw complex circuit I don't understand what I need to apply kcl or kvl. How to know that I have to apply kcl or kvl or both kcl, kvl?
  7. V

    How to find out current in circuit?

    Hello How to find out current i in circuit. What should I have to apply kcl or kvl. I always confused, I don't understand. Where I need to apply kcl or kvl
  8. V

    how the Web server read and execute php file?

    I have installed wamp server. in html file server read the file and send same file to the user. What does server do with php file? And does server send signal to physical port of pc?
  9. V

    how the Web server read and execute php file?

    Hello I don't understand basic difference, how the Web server read and execute file like php html. Web server read, processed, and deliver Web page to user I think, in html file server read the file and send same file to the user. How the Web server read and execute php File? Thank you very much
  10. V

    Serial port communication

    I don't have much knowledge, I have installed WAMP server to run php program but I am not sure that it will suitable for project, any suggestions
  11. V

    Serial port communication

    PC is connected with server that display Web page. I want to control any device via web page so that's why I need to create a web page , there should be buttons on web page , start and stop, if I press start button on web page , device should be “on’’ and If I press stopbutton on web page...
  12. V

    Serial port communication

    OK that means I need to make Web page using the PHP and next I have to make program using visual studio. Net to access the serial port of computer I am just asking for confirmation,
  13. V

    Serial port communication

    1. We can use PHP script to make Web Pag 2. It's not clear for me. how to send information via serial port. I have two method, how to complete task, which program language should I have to use
  14. V

    Serial port communication

    Hello I want to send data from Web page to the serial port of my computer. I did Google search and I found two method, first access serial port by using visual studio. Net and another is, access serial port using PHP script. I don't understand which method is use to transfer data from Web page...
  15. V

    How does web page send data to port of computer

    thank you very much for helping me ,I have to use C code to receive information on the microcontroller and PHP is used to send data. I don't have knowledge about PHP language. but I am reading some links , tutorials. also I saw some example code , can you tell me , what I have to write in program ?
  16. V

    How does web page send data to port of computer

    I have to write proogram only or I just need to install WAMP' stack
  17. V

    How does web page send data to port of computer

    Hello I have computer that has internet connection and Microcontroller is connected to computer via usb to db9 cable. LED is connected to port pin of microcontroller Computer -> web page (com port of PC)----- DB9 connector -> max Rs232 - > micro c -> LED I want to control LED via web page I...
  18. V

    how to find out current in each resistors

    I apologize for wrong title selection and post I will make some real connection on breadboard ( just learning for concept of circuit theory ) than I will ask you my doubt thank you very much
  19. V

    how to find out current in each resistors

    Hello Kiwi I try to clear your confusen I thing my title selection was wrong. It should be theory vs practical why I am on this forum : because I don't understand electronics easily do you think that all peoples have same capability to learn ? if you will read the top 5 lines of my post. you...
  20. V

    how to find out current in each resistors

    Hello I have multimeter, breadboard and some resistors. I can connect resistors on breadboard I want to do some real work. I can measure voltage , current and resistance with multimeter. I have different value of resistors If we know two known value than we can find one unknown value ie. if we...
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