Need help with question

Discussion in 'Homework Help' started by iamizz, Nov 27, 2012.

  1. iamizz

    Thread Starter New Member

    Nov 27, 2012
    1
    0
    What will happen to the “clock speed” (the output of pin 3) if you change the values of the resistors from 180k ohms to 1k ohms and the value of the capacitor from 0.22 µF to .10 µF? Will the “ticks” from the clock speed up or slow down? [HINT: The answer can be found here:
    http://www.doctronics.co.uk/555.htm or
    here: http://www.allaboutcircuits.com/vol_6/chpt_7/6.html and this is what the circuit looks like could you take a look and tell me the answer it has me puzzeled

    Figure 1 Question 1
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,792
    No. We won't just tell you the answer. But if you describe your thoughts and reasoning, we will be more than happy to critique them and, where necessary, point things out you've overlooked or ask questions that steer you in the right direction. But it all starts with you should your efforts up to this point.

    Of course, even if we wanted to just answer your question, we couldn't because you seem to think we are mind readers and just happen to know exactly what circuit you are talking about and which resistor is 180kohm and which capacitor is .22uF. Or is knowing that you are working with Figure 1 Question 1 supposed to be enough for us to go off of?
     
  3. vk6zgo

    Active Member

    Jul 21, 2012
    677
    85
    Without seeing the circuit you are talking about,we are battling to help you!
    As the value of CR is reduced after the change,what does this imply?
    Remember,t=CR.
     
Loading...