Question
8. The current in a simple series circuit is 5 amp. When an additional resistance of 2 ohms is inserted in series, the current drops to 4 amp. What is the resistance of the original circuit?
Answers
bobpursley
V/r=5
V/(r+2)=3
V=5r
V=3r+6
5r=3r+6
r=3
V/(r+2)=3
V=5r
V=3r+6
5r=3r+6
r=3
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