# A circuit analysis problem

1. Oct 8, 2005

### Salman

PROBLEM:the current at the terminals of a certain current source is measured with an ammeter having an internal resistance $$R_i=10 ohms$$ and is found to be $$11.988 mA$$ ;adding a $$1.2 kilo -ohms$$ resistance between the source terminals causes the ammeter reading to drop to $$11.889 mA$$.Find $$i_s$$ and $$R_s$$

NOTE:$$i_s$$ and $$R_s$$ constitute a practical current source.i.e $$R_s$$ is the internalresistance of the source $$i_s$$