The value of resistance of an unknown resistor is calculated using the formula `R = V//I ` where V and I are the readings of the voltmeter and the ammeter, respectivley. Consider the circuits below. The internal resistances of the voltmeter and the ammeter `(R_V and R_G, respectively)` are finite and nonzero. , Let `R_(A) and R_(B)` be the calculated values in the two cases A and B , respectively. The relation between `R_A` and the actual value of R isA. `RgtR_(A)`B. `RltR_(A)`C. `R=R_(A)`D. dependent upon E and r.

The value of resistance of an unknown resistor is calculated using the

1.	The value of resistance of an unknown resistor is calculated using the formula `R = V//I ` where V and I are the readings of the voltmeter and the ammeter, respectivley. Consider the circuits below. The internal resistances of the voltmeter and the ammeter `(R_V and R_G, respectively)` are finite and nonzero. , Let `R_(A) and R_(B)` be the calculated values in the two cases A and B , respectively. The relation between `R_A` and the actual value of R isA. `RgtR_(A)`B. `RltR_(A)`C. `R=R_(A)`D. dependent upon E and r.
Answer» Correct Answer - A `R_(A)=(R.R_(V))/(R+R_(V))ltR`

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