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Resistive voltage dividers and flowing currents.

Discussion in 'Electronics Homework Help' started by Luis Costa, Jul 30, 2016.

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  1. Luis Costa

    Luis Costa

    30
    3
    Mar 13, 2015
    I've been finding it hard to understand if the currents flowing through the circuit are even or what? Can u see the calculations on the drawing and tell if the Power formula P=V*A applies that way? Anybody? Thanks in advance
     

    Attached Files:

  2. Ratch

    Ratch

    1,093
    334
    Mar 10, 2013
    First of all, you are using technical slang when you say or write "current flow". Even when everyone knows what you mean, that is not the correct description of what is happening. Current is charge flow, so current flow means "charge flow flow". Although just about everyone uses that term including textbooks, the correct descriptive is charge flow or current is present, or current exists.

    Now, let's take things one at a time. What is the resistance of the two 1 ohm resistors in parallel?

    Ratch
     
  3. Luis Costa

    Luis Costa

    30
    3
    Mar 13, 2015
    Sorry about some incorrections... that second resistor just means you cant overcome the resistance of R2. I was just making as i was actually using those 2,5v. I just wanted to know what the current is at the divided point with 1 / 1 Ohm divider and Voltage of 5V - since you get it from V/R and there is a power of 25W i imagine some dissipates as heat.
    Can you help out? Thanks ratch and anyone else.
     
  4. Ratch

    Ratch

    1,093
    334
    Mar 10, 2013
    Where is the second of three resistors? Where is "R2" marked on the schematic? What is the resistance of the two 1 ohm resistors in parallel?

    Ratch
     
  5. davenn

    davenn Moderator

    13,813
    1,945
    Sep 5, 2009
    @Chemelec

    I deleted your full answers as Ratch was trying to get the OP to work it out and answer the Q he asked twice
    please be careful before giving answers :) :)

    EDIT and I am moving this to homework

    Dave
     
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