1.

A \[50\Omega \] resistance is connected to a battery of 5V. A galvanometer of resistance\[100\Omega \] is to be used as an ammeter to measure current through the resistance, for this a resistance\[{{r}_{s}}\]is connected to the galvanometer. Which of the following connections should be employed if the measured current is within 1% of the current without the ammeter in the circuit?     

A. \[{{r}_{s}}=0.5\Omega \] in series with the galvanometer
B. \[{{r}_{s}}=1\Omega \] in series with galvanometer
C. \[{{r}_{s}}=1\Omega \] in parallel with galvanometer
D. \[{{r}_{s}}=0.5\Omega \] in parallel with the galvanometer
Answer» E.


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