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Question

# Students A and B connect the two resistors R1 and R2 given to them in the manners shown below: and then insert them at X and Y into the measuring circuit shown below: We can then say that (1) both the students will determine the equivalent resistance of the series combination of R1 and R2 (2) both the students will determine the equivalent resistance of the parallel combination of R1 and R2 (3) student A will determine the equivalent resistance of the series combination while student B will determine the equivalent resistance of the parallel combination of R1 and R2 (4) student A will determine the equivalent resistance of the parallel combination while student B will determine the equivalent resistance of the series combination of R1 and R2

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Solution

## In combination A, only one end of the resistors are in contact with each other, so they are in series, and in the combination B, both ends of the resistors are in contact, so they are in parallel connection. So, student A will determine the equivalent resistance of the series combination while student B will determine the equivalent resistance of the parallel combination of R1 and R2. Hence, the correct answer is option 3.

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