PHYS345 Electricity and Electronics
Answer for P3.2
Source substitution leads to the following circuit:
The current through 900 ohm experiencing 7.0 V is 7.78 mA;
thus the current through R2 must be 2.78 mA.
Accordingly its resistance must be 1800 ohm.
Last updated Sept. 23, 1998.
Copyright George Watson, Univ. of Delaware, 1998.