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

#### charmcaster.engg

Mar 20, 2014
79

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

#### charmcaster.engg

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

#### Laplace

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

#### charmcaster.engg

Mar 20, 2014
79
Which component is the 'bleeder resistor'?
The current flowing through an unloaded voltage divider is bleeder current.

#### Laplace

Apr 4, 2010
1,252
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?

#### duke37

Jan 9, 2011
5,364
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

#### charmcaster.engg

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

#### charmcaster.engg

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

#### Laplace

Apr 4, 2010
1,252
...explain in detail how you have find out the current...
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.

#### charmcaster.engg

Mar 20, 2014
79
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.
Thanks!

Replies
6
Views
2K
Replies
4
Views
2K
G
Replies
23
Views
3K
Grant
G
D
Replies
10
Views
4K
Ben Jackson
B
J
Replies
16
Views
2K
N