answer of the question tell the answer of this question immediately
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It is both R1 and R2
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C) both R1 and R2
This is because current is constant throughout the circuit in series connection.
I1=I2=I3
Now, Ammeter will show a reading of I.
However, V=IR or R=V/I. This means I = V/R, I is inversely proportional to R. This R affects I and thus the reading of ammeter. This R is the sum of R1 and R2.
This is because current is constant throughout the circuit in series connection.
I1=I2=I3
Now, Ammeter will show a reading of I.
However, V=IR or R=V/I. This means I = V/R, I is inversely proportional to R. This R affects I and thus the reading of ammeter. This R is the sum of R1 and R2.
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