The correct setup to verify Ohm's law is:

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(B) To verify Ohm's law,we use the relation $V = IR$,where $I$ is the current flowing through a resistor and $V$ is the potential difference across th

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(B) To verify Ohm's law,we use the relation $V = IR$,where $I$ is the current flowing through a resistor and $V$ is the potential difference across that specific resistor.$1$. An ammeter must be connected in series with the resistor to measure the current $I$ flowing through it.$2$. $A$ voltmeter must be connected in parallel with the resistor to measure the potential difference $V$ across it.Looking at the options,the setup in option $(b)$ correctly places the ammeter in series with the resistor and the voltmeter in parallel across the resistor. Therefore,option $(b)$ is the correct setup.

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