Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: For measuring the potential difference across a resistance of $$600$$ $$\Omega$$, the voltmeter with resistance $$1000$$ $$\Omega$$ will be preferred over voltmeter with resistance $$4000$$ $$\Omega$$.
Reason R: Voltmeter with higher resistance will draw smaller current than voltmeter with lower resistance.
In the light of the above statements, choose the most appropriate answer from the options given below

Assertion A: For measuring potential difference across a 600Ω resistance, a 1000Ω voltmeter is preferred over a 4000Ω voltmeter.

This is NOT CORRECT. An ideal voltmeter should have infinite resistance. A voltmeter with higher resistance (4000Ω) draws less current from the circuit and gives a more accurate reading of the potential difference. Therefore, the 4000Ω voltmeter is preferred, not the 1000Ω one.

Reason R: A voltmeter with higher resistance will draw smaller current than a voltmeter with lower resistance.

This is CORRECT. Since $$I = V/R$$, a higher resistance means less current drawn by the voltmeter, which minimizes the disturbance to the circuit being measured.

Therefore, A is not correct but R is correct.