# what is bleeder current? n how to find it out?

Discussion in 'Electronics Homework Help' started by charmcaster.engg, Jan 16, 2015.

1. ### charmcaster.engg

79
1
Mar 20, 2014

If the load in the given circuit is 80 k , what is the bleeder current?

2. ### charmcaster.engg

79
1
Mar 20, 2014
I find out the total equivalent resistance n then current comes to be 2.1mA. But ans. is 1.96 mA.?

3. ### Laplace

1,252
184
Apr 4, 2010
Which component is the 'bleeder resistor'?

4. ### charmcaster.engg

79
1
Mar 20, 2014
The current flowing through an unloaded voltage divider is bleeder current.

5. ### Laplace

1,252
184
Apr 4, 2010
It would seem that whoever calculated the answer of 1.96 mA was using a different definition.

Was the question to find the bleeder current, or find the current through the bleeder resistor?

6. ### duke37

5,364
769
Jan 9, 2011
I get 1.96mA through R2. I obtained this by first calculating the output voltage. It would then seem that the bleeder current is the wasted current through R2

7. ### charmcaster.engg

79
1
Mar 20, 2014
Can you explain in detail how you have find out the current? I tried but I didn't get it.

8. ### charmcaster.engg

79
1
Mar 20, 2014
The question is to find bleeder current. No additional details.

9. ### Laplace

1,252
184
Apr 4, 2010
Find the voltage across RL from the voltage divider between R1 and {R2 in parallel with RL}, then use that voltage to get the current through R2.

10. ### charmcaster.engg

79
1
Mar 20, 2014
Thanks!

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Continue to site