The current in the resistor is- A
- B
- C
- D
View written solutionFree
Correct answer: D: $0.27\TEXT{ A } P_1 \TO P_2$
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Interpret the circuit
The two batteries with internal resistances are connected in parallel between points and , and the resistor is also connected across the same two points.
Let the potential difference across the resistor be
Then current through the resistor is taken positive from to .
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Write branch currents
For the battery with internal resistance : assuming its positive terminal is at (as usual in such figure), current from to in that branch is
For the battery with internal resistance :
Through the resistor:
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Apply KCL at node
Since there is no external connection, algebraic sum of currents from to through all three branches must be zero:
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Solve for
Multiply by :
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Find current in the resistor
So the current is approximately flowing from to .
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Match with the given options
Closest option is:
Hence, the correct option is D.
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Comparison with stored answer
Stored correct answer is C: .
This does not match the circuit analysis. The likely correct answer is D.
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