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  • A student is provided with a variable voltage source V, a test resistor  <img alt="\mathrm{R}_{\mathrm{T}}=10 \Omega" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7BR%7D

A student is provided with a variable voltage source V, a test resistor  \mathrm{R}_{\mathrm{T}}=10 \Omega , two identical galvanometers  G_{1}  and  G_{2}  and two additional resistors,

\mathrm{R}_{\mathrm{1}}=10 M\Omega   and   \mathrm{R}_{\mathrm{2}}=0.001\Omega.  For conducting an experiment to verify ohm's law, the most suitable circuit is :

 

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)

best_answer

This question is based on the conceptual clarity that we should connect ammeter in series and voltmeter in
parallel to measure current and potential difference, respectively
Also, when we use a galvanometer to create an ammeter, shunt resistance should be very small and should be
in parallel.
When we create a voltemeter shunt should be large and in series with galvanometer.
All these criteria are satisfied in option (2)

Posted by

Rishabh

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