Results 1 to 7 of 7
Like Tree1Thanks
  • 1 Post By puresoul

Math Help - combination circuits

  1. #1
    Member Furyan's Avatar
    Joined
    Sep 2011
    Posts
    132
    Thanks
    3

    combination circuits

    Hello,


    I'm sorry if this is not an appropriate question , I just thought one of you might know the answer. In a simple combination series/parallel circuit, which I think this is, what am I calculating the voltage across if there's a voltmeter attached as shown in the diagram? I know V(T), and have calculated I(T), R(T), R(eq) and the current in each of the parallel parts of the circuit. One of the other questions is to calculate the voltage shown and I have no idea how to proceed any help would be greatly appreciated.

    Thank you
    Attached Thumbnails Attached Thumbnails combination circuits-circuit-1.jpg  
    Last edited by Furyan; December 1st 2012 at 12:09 PM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member
    Joined
    Nov 2012
    From
    Abu Dhabi
    Posts
    55
    Thanks
    3

    Re: combination circuits

    Quote Originally Posted by Furyan View Post
    Hello,


    I'm sorry if this is not an appropriate question , I just thought one of you might know the answer. In a simple combination series/parallel circuit, which I think this is, what am I calculating the voltage across if there's a voltmeter attached as shown in the diagram? I know V(T), and have calculated I(T), R(T), R(eq) and the current in each of the parallel parts of the circuit. One of the other questions is to calculate the voltage shown and I have no idea how to proceed any help would be greatly appreciated.

    Thank you
    what do you mean by R(eq)??
    And do you mean by (T) total ??

    One way of doing it is finding the PD across R5 and across R4 and across R3
    and subtracting the PD across R5 from the PD across R4 and the PD across R3

    Can you do that??
    Last edited by puresoul; December 4th 2012 at 06:19 AM.
    Thanks from Furyan
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member Furyan's Avatar
    Joined
    Sep 2011
    Posts
    132
    Thanks
    3

    Re: combination circuits

    Quote Originally Posted by puresoul View Post
    what do you mean by (eq), (T) ??
    Hello,

    Thank you for your relpy.

    (T) means total, it should have been a subscript IT, VT and such. Req is the series equivalent of the resistance in the parallel part of the circuit.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Junior Member
    Joined
    Nov 2012
    From
    Abu Dhabi
    Posts
    55
    Thanks
    3

    Re: combination circuits

    Quote Originally Posted by Furyan View Post
    Hello,

    Thank you for your relpy.

    (T) means total, it should have been a subscript IT, VT and such. Req is the series equivalent of the resistance in the parallel part of the circuit.
    Maybe if you write the values that you have we could help you more
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Member Furyan's Avatar
    Joined
    Sep 2011
    Posts
    132
    Thanks
    3

    Re: combination circuits

    Quote Originally Posted by puresoul View Post
    what do you mean by R(eq)??
    And do you mean by (T) total ??

    One way of doing it is finding the PD across R5 and across R4 and across R3
    and subtracting the PD across R5 from the PD across R4 and the PD across R3

    Can you do that??
    Yes I can, thank you. I think my reply and your edit must have crossed each other. I think it's actually VR5 - (VR3 + VR4) or VR2 - VR6.

    Thank you for your help.
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Junior Member
    Joined
    Nov 2012
    From
    Abu Dhabi
    Posts
    55
    Thanks
    3

    Re: combination circuits

    Quote Originally Posted by Furyan View Post
    Yes I can, thank you. I think my reply and your edit must have crossed each other. I think it's actually VR5 - (VR3 + VR4) or VR2 - VR6.

    Thank you for your help.

    That's right
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Newbie
    Joined
    Nov 2012
    From
    india
    Posts
    8
    Thanks
    1

    Re: combination circuits

    it is critically important to have a solid understanding of the concepts that pertain to both series circuits and parallel circuits.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Circuits
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: May 19th 2011, 11:48 PM
  2. Hamiltonian circuits
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: May 5th 2010, 11:38 AM
  3. Engineering Circuits help
    Posted in the Math Topics Forum
    Replies: 0
    Last Post: April 24th 2010, 04:29 PM
  4. Another First Order-RC circuits
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: September 29th 2009, 09:12 PM
  5. RC circuits
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: July 12th 2009, 06:29 PM

Search Tags


/mathhelpforum @mathhelpforum