PHYSICS:Batteries in Series or Parallel
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Question “PHYSICS:Batteries in Series or Parallel”
You are given two circuits with two batteries of emf and internalresistance each. Circuit A has the batteries connected inserieswith a resistor of resistance , and circuit B has thebatteries connected in parallel toan equivalent resistor.Note that the symbol should be entered in your answersasEMF.
Calculate the current through the resistor ofresistance for circuit B.Express your answer in terms of, , and .what I get: =but what the heckis?
Answer
Modified form ofrcuit
Ohm’slawis V=IRI=V/RResultentresistance R=2R
1
R
2
/(2R
1
+R
2
)I=2E(2R
1
+R
2
)/2R
1
R
2
Modified circuit B
This circuit will not be affected by current because there is no voltage source.
Conclusion
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